🔧 Laing E-14 EcoCirc LMB07102983 Spa Circulation Pump – 230V 1-1/2″ MBT

High-flow 36 GPM circulation for larger spa systems — ECM efficiency with shaftless, sealless design

♨️ Product Overview

The Laing E-14 EcoCirc LMB07102983 is a 230V single-speed spa circulation pump with 1-1/2″ Male Buttress Thread (MBT) connections and a 4-foot AMP cord with 4-pin connector included, designed for continuous 24/7 circulation on larger spa systems requiring high-flow heater operation. The E-14 is the big brother of the E-10 series — delivering up to 36 GPM (nearly triple the E-10’s 14 GPM) through standard 1-1/2″ spa plumbing, making it the preferred OEM circulation pump for full-size hot tubs with high-flow heater requirements.

Factory-installed by Master Spas, LA Spas, Clearwater Spas, Artesian Spas, Marquis Spas, Hydropool, Dynasty Spas, Royal Spas, Saratoga Spas, Arctic Spa, Down East Spas, and many other major manufacturers, the E-14 is the most widely used high-flow ECM circulation pump in the spa industry. Its 1-1/2″ MBT connections use standard spa pump union threads (approximately 2-7/16″ outer diameter on the suction side, 1-7/8″ OD on the discharge side), making it a direct fit for spas designed around conventional circulation pump plumbing.

Powered by the same advanced Electronically Commutated Motor (ECM) technology as the E-10 series, the E-14 consumes up to 40% less energy than standard 48-frame induction motor circulation pumps. The shaftless, sealless design makes it virtually leak-proof — there is no mechanical shaft seal to fail. Built-in dry run protection via embedded microprocessor software automatically shuts down the pump if operated without water. The captured O-ring lock ring volute design provides a hand-tight seal for easy removal when checking the impeller or clearing debris. The wet end can be positioned at either 12 o’clock or rotated to 3 o’clock to align with existing plumbing. Compact, lightweight (under 5 lbs), and whisper-quiet, the E-14 fits standard spa equipment bays.

⭐ Key Features

• ✅ 36 GPM Maximum Flow — Nearly triple the E-10’s flow rate, designed for high-flow heater systems in full-size hot tubs
• ✅ 1-1/2″ MBT Connections — Standard spa pump union threads for direct compatibility with most full-size hot tub plumbing
• ✅ 230V / 110W ECM Technology — Electronically Commutated AC/DC/AC Spherical Motor consumes 40% less energy than standard 48-frame induction motors
• ✅ Shaftless, Sealless Design — No mechanical shaft seal to leak or fail, virtually leak-proof operation
• ✅ Built-In Dry Run Protection — Embedded microprocessor software automatically detects no-water condition and shuts down to prevent damage
• ✅ Captured O-Ring Lock Ring Volute — Hand-tight seal for easy removal to check impeller or clear debris
• ✅ Rotatable Wet End — Positions at 12 o’clock or 3 o’clock to align with existing plumbing
• ✅ 4-Foot AMP Cord with 4-Pin Connector INCLUDED — Plug-and-play connection to spa control systems using standard AMP receptacles
• ✅ Open Impeller — Clog Resistant — Handles debris that would stall closed-impeller pumps
• ✅ OEM for Major Spa Brands — Master Spas, LA Spas, Artesian, Clearwater, Marquis, Hydropool, Dynasty, and many more
• ✅ 50/60 Hz Compatible — Works on both domestic (60 Hz) and international (50 Hz) electrical systems
• ✅ 1-Year Manufacturer Warranty — Full coverage from Laing Thermotech / Xylem

🔩 Technical specifications

⚡ Electrical Requirements

⚠️ CRITICAL — 230V ONLY:

The Laing E-14 is manufactured as a 230V-only pump. There is no 115V E-14 variant. Do NOT connect to a 115V circuit. If your spa operates on 115V and requires a high-flow circulation pump, consult with Parts4Tubs for alternative options.

⚠️ AMP CORD CONNECTION:

This pump includes a 4-foot AMP cord with a 4-pin AMP connector. Plug directly into the AMP receptacle on your spa control system. The cord uses easy pinch terminal connections at the pump end if you need to replace the cord. If your spa uses a different connector type, the cord end can be modified by a qualified technician.

🔗 Compatibility Guide

🛒 Recommended items

Laing E-14 vs E-10 — Key Differences

Feature	E-14 LMB07102983 (This Pump)	E-10 6050U0016 (230V 3/4″ Barb)
Maximum Flow Rate	36 GPM	14 GPM
Maximum Head	10.5 ft	20 ft
Wattage	110W	65W
Amperage	0.45A	—
Horsepower	1/40 HP	—
RPM	2,100	3,200
Connections	1-1/2″ MBT (Standard Spa Unions)	3/4″ Barb
Volute Seal	Lock Ring with Captured O-Ring	4 Bolts and 4 Nuts
Wet End Position	12 o’clock or 3 o’clock	4 Discharge Angles
Cord Type	4 ft AMP with 4-Pin Connector	4 ft Bare Cord
Unions	Sold Separately	Not Applicable
115V Version Available	No — 230V Only	Yes — 6050U0015
Motor Technology	ECM (Same Family)	ECM (Same Family)
Shaft Seal	None (Shaftless, Sealless)	None (Magnetically Driven)
Dry Run Protection	Yes	Yes
Best For	Full-size spas, high-flow heaters	Small-medium spas, low-flow heaters

💡 The E-14 is designed for spas with 1-1/2″ plumbing and high-flow heater systems. The E-10 is designed for spas with 3/4″ or 1″ plumbing and low-flow heater systems. These are NOT interchangeable — choose based on your spa’s plumbing size and heater requirements.

Compatible Spa Brands — OEM Equipment

The Laing E-14 is factory-installed as the OEM circulation pump in:

• ♨️ Master Spas — Part numbers X400825, X320581, 6080U0015
• ♨️ LA Spas — Part numbers EL-64109-1, 5EL-64109-1, 6080U0014
• ♨️ Clearwater Spas — Part numbers 6080U0014, 5EL-64109-1
• ♨️ Artesian Spas — Part numbers 21-0008-19, OP21-0009-19
• ♨️ Marquis Spas — 230V models with 1-1/2″ circulation
• ♨️ Hydropool / Clair Azur — Part number 6505116
• ♨️ Dynasty Spas — Part number LMB07102983
• ♨️ Arctic Spa — Part number 140200
• ♨️ Canadian Spa — Part number 6080C0016
• ♨️ Wellis Spas — Part number ACM0452
• ♨️ Royal Spas — 230V models
• ♨️ Saratoga Spas — 230V models
• ♨️ Down East Spas — 230V models
• ♨️ Vital Spa — 230V models
• ♨️ And many other OEM spa manufacturers

Can Replace

The Laing E-14 can also be used to replace the Aqua-Flo CMCP Circ Master pumps and other 1-1/2″ MBT circulation pumps including the LX JA35, LX JA50, and LX WE14 used in various domestic and imported spas, provided voltage (230V) and plumbing (1-1/2″ MBT) match.

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🔩 Alternate Part Numbers & Cross-References

🔧 Parts and fittings for this

Primary Laing Part Numbers

Part Number	Description
LMB07102983	Primary Part Number (Parts4Tubs, Dynasty Spas)
73348	Laing Primary Alternate
37749	Laing Alternate
73229	Laing Alternate (Previous Version)
73359	Laing Alternate
E14-NSTN2W-10	Laing Full Model Number
E14-NSTNNN2W-10	Laing Model Number (Alternate)
E14-NSTNDNN2W-02	Laing Model Number (Alternate)
E14-NSTNDNN2W-03	Laing Model Number (Alternate)
E14-NSTNDNN2W-05	Laing Model Number (Alternate)
E14NSTN2W10	Laing Model (No Dashes)
E14NSTNNN2W10	Laing Model (No Dashes)
733886733488	UPC Code

HydroQuip Cross-References

Part Number	Notes
10-0107	HydroQuip Part Number
10-0107-K	HydroQuip Kit Version
LHB07100142	HydroQuip Internal Code
LHB07102983	HydroQuip Internal Code

Allied Innovations Cross-References

Part Number	Notes
1-00-0214	Allied Part Number

Master Spas Cross-References

Part Number	Notes
X400825	Master Spas OEM (2009+)
X320581	Master Spas OEM
6080U0015	Master Spas Cross-Reference

Artesian Spas Cross-References

Part Number	Notes
21-0008-19	Artesian Spas OEM
OP21-0009-19	Artesian Spas (with In.Link Plug)

LA Spas / Clearwater Cross-References

Part Number	Notes
6080U0014	LA Spas / Clearwater OEM
EL-64109-1	LA Spas Part Number
5EL-64109-1	Clearwater Part Number

Other Manufacturer Cross-References

Part Number	Brand
6505116	Hydropool / Clair Azur
ACM0452	Wellis Spas
140200	Arctic Spa
6080C0016	Canadian Spa
301524	Sundance / Jacuzzi
900800681	Industry Cross-Reference
P2450	Industry Cross-Reference
10-WE14-240	LX WE14 Cross-Reference

Other Industry Cross-References

Part Number	Notes
15-375-0014	Industry Cross-Reference
6080U0032	Industry Cross-Reference
6080U0016	Industry Cross-Reference
6050C0007	Industry Cross-Reference
6050C0005	Industry Cross-Reference
9338-40	Industry Cross-Reference

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🛠️ Installation Requirements

What’s in the Box

• ✅ Laing E-14 EcoCirc Circulation Pump (230V)
• ✅ 4-Foot AMP Cord with 4-Pin AMP Connector (Pre-Wired)
• ✅ Mounting Bracket
• ❌ Unions NOT INCLUDED — Standard 1-1/2″ spa pump unions sold separately

Mounting

Requirement	Specification
Mounting Position	Horizontal recommended
Bracket	Included mounting bracket
Base	Solid, level surface
Ventilation	Ensure adequate airflow around motor
Access	Sufficient clearance for union removal and maintenance

Plumbing

Connection	Size
Suction	1-1/2″ MBT — Center (2-7/16″ Physical OD)
Discharge	1-1/2″ MBT — Side (1-7/8″ Physical OD)
Volute Fastening	Lock Ring with Captured O-Ring
Unions	Standard 1-1/2″ Spa Pump Unions — SOLD SEPARATELY

Wet End Positioning

The E-14 wet end can be positioned in two orientations to match existing plumbing:

• 12 o’clock position — Discharge points straight up
• 3 o’clock position — Discharge points to the side

Rotate the wet end to align with your existing plumbing before tightening the lock ring.

Installation Notes

⚠️ Pump must be installed below water level (flooded suction) or fully primed before operating.

⚠️ Built-in dry run protection will shut down the pump if operated without water — however, always ensure the pump is properly primed before starting.

⚠️ AMP CORD: Plug the 4-pin AMP connector directly into the matching AMP receptacle on your spa control system. The cord uses pinch terminal connections at the pump end for easy cord replacement if needed.

⚠️ LOCK RING: The captured O-ring lock ring volute is designed for hand-tight installation. Do NOT use tools to over-tighten the lock ring — hand-tight is sufficient for a proper seal.

⚠️ UNIONS SOLD SEPARATELY: This pump requires standard 1-1/2″ spa pump unions for plumbing connection. Order unions separately if your existing unions are damaged or missing.

⚠️ Counter-clockwise rotation when viewed from the motor end — do not attempt to reverse.

⚠️ GFCI protection is required by the National Electrical Code (NEC) for all hot tub and spa installations.

⚠️ 230V ONLY — there is no 115V E-14 variant.

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🔄 Maintenance Guide

Routine Maintenance

Task	Frequency	Notes
Check for leaks	Monthly	Around unions and lock ring
Inspect union O-rings	Monthly	Replace if cracked or compressed
Check flow rate	Monthly	Reduced flow indicates blockage
Remove lock ring, inspect impeller	As Needed	Hand-tight lock ring allows easy access
Verify quiet operation	Quarterly	Unusual noise indicates bearing wear or impeller issue
Check mounting bracket	Quarterly	Tighten if loose
Inspect AMP cord connections	Quarterly	Ensure secure seating in receptacle

Warning Signs — Replace Pump If:

• Unusual noise (grinding, humming, rattling)
• Motor overheating excessively
• Reduced or no water flow despite clear suction
• Motor trips breaker repeatedly
• Pump fails to start
• Dry run protection activates repeatedly with water present
• Impeller coming apart or detaching from rotor

Lock Ring Access

The captured O-ring lock ring design allows hand-tight removal for quick access to the impeller and volute interior. If flow decreases, remove the lock ring, inspect the open impeller for debris, clean as needed, and re-secure by hand. This is a significant maintenance advantage over bolt-fastened volute designs.

Shaftless, Sealless Motor — No Seal Replacement Needed

The Laing E-14 uses a shaftless, sealless motor design. There is no mechanical shaft seal to leak, wear out, or replace. The only serviceable internal component is the rotor assembly.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ 24/7 Spa Circulation (230V)	✅ Yes — Primary Use	Continuous duty high-flow heater circulation
♨️ High-Flow Heater Systems	✅ Yes — Primary Use	36 GPM max flow for full-size hot tubs
♨️ Master Spas	✅ Yes — OEM	X400825, X320581, 6080U0015
♨️ LA Spas / Clearwater	✅ Yes — OEM	EL-64109-1, 6080U0014
♨️ Artesian Spas	✅ Yes — OEM	21-0008-19, OP21-0009-19
♨️ Marquis / Hydropool / Dynasty	✅ Yes — OEM	Various part numbers
♨️ Arctic / Canadian / Wellis / Royal / Saratoga	✅ Yes — OEM	Various part numbers
♨️ Replace Aqua-Flo CMCP	✅ Yes	Same 1-1/2″ MBT, verify 230V
♨️ Replace LX JA35 / JA50 / WE14	✅ Yes	Same 1-1/2″ MBT, verify 230V
♨️ Ozone Treatment Systems	✅ Yes	Compatible application
♨️ Saltwater Spa Systems	✅ Yes	Saltwater compatible
🛁 115V Spas	❌ No — 230V Only	No 115V E-14 available
🛁 3/4″ Barb or MPT Plumbing	❌ No — Wrong Size	Use Laing E-10 series
🛁 Low-Flow Heater (14 GPM)	❌ Overkill	Use Laing E-10 series for low-flow systems

❓ Frequently Asked Questions

Q: What is the flow rate of the E-14? A: Maximum 36 GPM with a maximum head of 10.5 feet. This is nearly triple the E-10’s 14 GPM flow rate, designed for full-size hot tubs with high-flow heater requirements.

Q: What is the wattage and amperage? A: 110W at 0.45A on 230V / 60 Hz. Some sources list 108W–115W depending on motor revision. Despite being nearly double the E-10’s wattage, the E-14 still consumes 40% less energy than comparable 48-frame induction motor circulation pumps.

Q: What type of cord comes with this pump? A: A 4-foot AMP cord with a 4-pin AMP connector is included. Plug directly into the AMP receptacle on your spa control system. The cord uses easy pinch terminal connections at the pump end if replacement is needed.

Q: Are unions included? A: No. Standard 1-1/2″ spa pump unions are sold separately. Order unions if your existing ones are damaged or missing. The pump connections are 1-1/2″ Male Buttress Thread (MBT).

Q: What are the physical thread dimensions? A: The suction connection measures approximately 2-7/16″ outer diameter and the discharge measures approximately 1-7/8″ outer diameter. Both are standard 1-1/2″ MBT — the same thread pattern used on most spa jet pumps and circulation pumps.

Q: Can I use E-10 unions with the E-14? A: No. The E-10 uses 3/4″ barb or 3/4″ MPT connections. The E-14 uses 1-1/2″ MBT connections. These are completely different plumbing systems and are NOT interchangeable.

Q: Is there a 115V version of the E-14? A: No. The Laing E-14 is manufactured as a 230V-only pump. There is no 115V E-14 variant. If your spa operates on 115V, consult with Parts4Tubs for alternative high-flow circulation options.

Q: Can the wet end be rotated? A: Yes. The E-14 wet end can be positioned at 12 o’clock or rotated to 3 o’clock to align with your existing plumbing configuration.

Q: How does the lock ring volute work? A: The E-14 uses a lock ring with a captured O-ring instead of bolts. This allows hand-tight installation and easy removal for impeller inspection or debris clearing — a significant maintenance advantage.

Q: Does this pump have a shaft seal? A: No. The E-14 uses a shaftless, sealless motor design. There is no mechanical shaft seal to leak, wear out, or replace.

Q: What is dry run protection? A: The E-14 has embedded microprocessor software that automatically detects when the pump is running without water and shuts it down to prevent motor and pump damage.

Q: Is this a replacement for the Gecko CMHP or Waterway Iron Might? A: Not directly. The Gecko CMHP and Waterway Iron Might use 1-1/2″ center-discharge wet ends with shaft-seal motors — a fundamentally different design. The E-14 uses side-discharge with a shaftless ECM motor. While it can replace other 1-1/2″ MBT circulation pumps like the Aqua-Flo CMCP, LX JA35/JA50, and LX WE14, always verify plumbing alignment and connector type.

Q: Do I need a GFCI breaker? A: Yes. GFCI protection is required by the National Electrical Code (NEC) for all hot tub and spa installations.

Q: What warranty is included? A: 1-year manufacturer warranty from Laing Thermotech / Xylem. Contact Parts4Tubs for full warranty terms and support.

🏆 Why Choose the Laing E-14 EcoCirc LMB07102983

• ✅ 36 GPM High-Flow Circulation — Nearly triple the E-10’s flow for full-size hot tubs with high-flow heater systems
• ✅ ECM Motor Technology — 40% more energy-efficient than standard 48-frame induction motor circulation pumps
• ✅ Shaftless, Sealless Design — No shaft seal to leak or replace, virtually leak-proof motor operation
• ✅ Built-In Dry Run Protection — Embedded microprocessor prevents costly damage from operating without water
• ✅ Lock Ring Volute with Captured O-Ring — Hand-tight access for easy impeller inspection and debris clearing
• ✅ Rotatable Wet End — 12 o’clock or 3 o’clock positioning matches existing plumbing alignment
• ✅ 4-Foot AMP Cord with 4-Pin Connector — Plug-and-play installation for spa control systems
• ✅ 1-1/2″ MBT Standard Spa Connections — Direct fit for full-size hot tub plumbing
• ✅ OEM for 15+ Major Spa Brands — Master Spas, LA Spas, Artesian, Clearwater, Marquis, Hydropool, Dynasty, Arctic, and more
• ✅ 50/60 Hz Compatible — Works on both domestic and international electrical systems
• ✅ Compact and Lightweight — Under 5 lbs fits standard equipment bays
• ✅ 1-Year Manufacturer Warranty — Full coverage for peace of mind

🤝 Why Buy from Parts4Tubs

• ✅ US-based support for American customers
• ✅ Fast shipping across the United States
• ✅ Expert advice from spa and hot tub specialists
• ✅ Competitive pricing in USD
• ✅ Full warranty support
• ✅ Hassle-free returns
• ✅ 1-1/2″ spa pump unions available separately
• ✅ Dedicated customer service team

✨ Summary

The Laing E-14 EcoCirc LMB07102983 is a 230V high-flow spa circulation pump delivering 36 GPM through standard 1-1/2″ MBT connections — the big brother of the E-10 series for full-size hot tubs with high-flow heater requirements. Featuring advanced ECM technology at just 110W, shaftless sealless design, built-in dry run protection, lock ring volute with captured O-ring for easy maintenance, rotatable wet end, and a 4-foot AMP cord with 4-pin connector included, this pump is the OEM choice for Master Spas, LA Spas, Artesian, Clearwater, Marquis, Hydropool, Dynasty, Arctic, and many more. Order from Parts4Tubs today for fast shipping and expert support.

 

Unions and pump cords: pick the union size that matches your pump's ports (see the size chart below), and a 4-wire cord for a 2-speed pump.

How do I Replace a Hot Tub Pump?

Here's a general step-by-step guide on how to replace a hot tub pump. Keep in mind that the specific steps may vary depending on your hot tub's make and model, so it's essential to consult your hot tub's manual for model-specific instructions. If you're not comfortable with this procedure, it's a good idea to seek professional assistance.

Materials You'll Need:

• Replacement pump
• Screwdriver
• New union O-rings
• A strap wrench, only if a union nut is stuck
• PVC primer and cement, only if you are gluing in new tailpieces

Procedure:

1. Turn Off the Power: Before you begin, ensure the hot tub's power supply is turned off at the circuit breaker or disconnect switch. Safety should always be a priority when working with electrical components.

2. Drain the Hot Tub: If your hot tub is not already empty, you'll need to drain it. Follow your hot tub's manual or manufacturer's instructions for proper draining. (You might not need to do this if you can lock the pump off with the gate valves)

3. Locate the Pump: Identify the location of the existing pump in your hot tub. It's usually located near the equipment area or in a designated pump compartment.

4. Disconnect the Electrical Wiring: Carefully disconnect the electrical wiring from the old pump. This typically involves removing the electrical conduit cover, unscrewing wire nuts, and disconnecting the wires from the terminals. Be sure to note the wire connections or take a picture for reference when connecting the new pump.

5. Disconnect the Plumbing: Depending on your hot tub's plumbing setup, you'll need to disconnect the plumbing connections to the pump. Unscrew the union nuts by hand. If one is stuck, use a strap wrench rather than a pipe wrench, which can crack the nut. Be prepared for some water spillage when disconnecting the plumbing.

6. Remove the Old Pump: Once the electrical and plumbing connections are detached, carefully remove the old pump from its mounting position. Some pumps may be secured with mounting brackets or bolts.

7. Prepare the New Pump: If the new pump is not pre-assembled, you may need to attach fittings, unions, or adapters to match your hot tub's plumbing. Pump unions use buttress threads that seal on an O-ring, so fit new O-rings and hand-tighten the nuts. Do not use thread tape, pipe dope or sealant on them.

8. Mount the New Pump: Position the new pump in the same location as the old one and secure it in place using the mounting brackets or bolts.

9. Reconnect Plumbing: Reconnect the plumbing to the new pump, hand-tightening the union nuts. If you are gluing in new PVC tailpieces, use PVC primer and cement on those joints.

10. Reconnect Electrical Wiring: Reconnect the electrical wiring to the new pump, following the notes or pictures you took earlier. Make sure all wires are properly connected and secure.

11. Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.

12. Test the Pump: Turn on the hot tub's pump to ensure that it's working correctly. Check for any signs of leaks or irregularities in the plumbing connections.

13. Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.

14. Check for Leaks: Inspect the plumbing connections for any leaks. If you find any, turn off the pump, drain the tub again, and reseal the connections as needed.

15. Monitor: Keep an eye on the pump and plumbing for the next few days to ensure everything is functioning correctly and that there are no further issues.

Remember that this is a general guideline, and the specific steps may vary based on your hot tub's design. If you're unsure or uncomfortable with any aspect of this process, please do get in touch, happy to help.

How do I know what size hot tub pump I have?

Determining the size of your hot tub pump is an important step when it comes to maintenance or replacement. To find out the size of your hot tub pump, follow these steps:

1. Check the Manual: The easiest way to determine the size of your hot tub pump is to consult the owner's manual or user documentation that came with your hot tub. The manual typically contains detailed information about the specifications and components of your hot tub, including the pump.

2. Look at the Pump Housing: If you don't have access to the manual or it doesn't provide the information you need, inspect the pump itself. Most hot tub pumps have a label or plate on the pump housing that displays essential details, including the pump's model number, manufacturer, and specifications. You can then send that to me or Google it.

3. Measure the Pump: If the label is missing or damaged, you can measure the pump's dimensions. Measure the diameter of the pump's wet end (the part where the water flows) and the length of the wet end. These measurements can help identify the size and capacity of the pump.

4. Consult the Manufacturer: If you can't find the information on the pump or in the manual, contact the hot tub manufacturer or a reputable dealer. Provide them with your hot tub's model and serial number, and they should be able to identify the correct pump size for your specific hot tub.

5. Online Research: You can also search online using the pump's model number or hot tub's make and model. Many manufacturers provide detailed information about their products on their websites, and you may find specifications for your pump model.

Once you have determined the size and specifications of your hot tub pump, you can proceed with maintenance, repairs, or replacement if necessary. Keep in mind that replacing a hot tub pump with the same size and capacity as the original is crucial to ensure proper water circulation and filtration in your hot tub. If you're unsure about any aspect of this process, get in touch, always happy to help.