Complete Backflow Services Company LLC

Complete Backflow Services Company LLC Test, repair and replace backflow devices. Domestic, irrigation, fire sprinkler, soda machines, etc...

Serving all of the DFW metroplex with over 20 years of experience testing, repairing and replacing backflow assemblies on domestic water, irrigation and Fire Line.

Another Watts Water Technologies 957 repair. This one had 1/2" nut lodged in the #1 check spring. Replaced the rubber p...
10/09/2025

Another Watts Water Technologies 957 repair. This one had 1/2" nut lodged in the #1 check spring. Replaced the rubber parts on checks and relief, flushed and cleared the rusted build up around the test ports.

The Watts Water Technologies 009m2qt will develop a small crack at the relief valve opening causing a steady stream from...
09/25/2025

The Watts Water Technologies 009m2qt will develop a small crack at the relief valve opening causing a steady stream from the relief. In my experience, replacing the o-ring will not seal and the assembly has to be replaced. This typically happens in freezing temperatures, but this was in an interior pump room. Also replaced the 1/2" watts 009qt #1 check and cleaned the relief.

I've just reached 300 followers! Thank you for continuing support. I could never have made it without each one of you. 🙏...
09/21/2025

I've just reached 300 followers! Thank you for continuing support. I could never have made it without each one of you. 🙏🤗🎉

Backflows in Long Beach California.
09/07/2025

Backflows in Long Beach California.

Repaired four Watts Water Technologies 957 backflows at an apartment complex. All had rusted pieces stuck in the bottom ...
08/29/2025

Repaired four Watts Water Technologies 957 backflows at an apartment complex. All had rusted pieces stuck in the bottom of the #1 check valve. The last one ripped on the sleeve o-ring while reassembling. They are simple to repair but this design is not cost effective for the end user. Even with wye strainers, the rust comes from build up around the test ports internally. I would recommend if it's use the 009 model or use if possible. Test Gauge & Backflow Supply has them all.

We replaced an old 850 with a 350AST. We had to keep the old inlet gate valve due to the main gate valve at the mete...
08/22/2025

We replaced an old 850 with a 350AST. We had to keep the old inlet gate valve due to the main gate valve at the meter not closing.

On this day, we celebrate the technologies and professionals that protect the safety and quality of our potable water su...
08/16/2025

On this day, we celebrate the technologies and professionals that protect the safety and quality of our potable water supply.

This Ames 4000ss repair went fairly smooth. The first time rebuild on the relief was humbling. I would recommend Watts W...
08/14/2025

This Ames 4000ss repair went fairly smooth. The first time rebuild on the relief was humbling. I would recommend Watts Water Technologies make a 994 to 957 relief conversion adapter. It took 15 attempts to get the rubber part to fold just right. Thank you to Test Gauge & Backflow Supply for warning of what a pain it was going to be.

3" 957. Replaced all rubber parts.supplied by Test Gauge & Backflow Supply Removed rusty build-up inside on the test ...
08/12/2025

3" 957. Replaced all rubber parts.supplied by Test Gauge & Backflow Supply Removed rusty build-up inside on the test port openings, flushed and reassembled. Watts Water Technologies

All Watts Water Technologies products tested today. The first picture of the hydrant meter assembly was replaced with a ...
08/12/2025

All Watts Water Technologies products tested today. The first picture of the hydrant meter assembly was replaced with a 009m2qt rpz.

The 8" Ames 2000SE uses 6" check valves and are the same checks as the Watts Water Technologies model 774. This one requ...
08/09/2025

The 8" Ames 2000SE uses 6" check valves and are the same checks as the Watts Water Technologies model 774. This one required a #1 check replacement. Thanks to Test Gauge & Backflow Supply for insuring we were given the correct parts!

Address

Rockwall, TX
75032

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 9am - 1pm

Telephone

+19727222408

Website

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