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Secrets of the Successful Backflow Testing Companies

May 1, 2016

BAT DATABASE LOGO

Fellow backflow testers ask me how I find time to run a business and find time to be a full-time single father with a dog and cat. I tell them it’s quite simple, I use Bat Database the only full-featured backflow testing software on the market today. The software was designed by a retired software engineer who is also a very successful certified backflow assembly tester. The product has grown into the premier #1 backflow testing software program in the world thanks to input from backflow testing companies through out the country over the last 10 years. There are many new backflow testing software choices out there these days that are trying to imitate Bat Database, but really they’re not much more than a $1.99 app when it comes to usefulness & features. Their developers simply do not have the knowledge base or the experience Bat Database developers have.

I am not affiliated with Bat Database and this is not an ad; I am only one of many extremely satisfied customers. I truly care about the backflow industry and believe it will thrive with good quality honest backflow testing men and women using the best possible tools and software available. Click on link to go to:  Batdatabase.com and watch some training videos to see for yourself!

 

The No Good, Bad & the Ugly

January 13, 2016

                     Here is an improper installation with multiple deficiencies.”Improper installation with multiple deficiencies

1) System has an unprotected bypass, this is not allowed.

2) Backflow assembly is not mounted per manufactures written specifications; mounting bracket blocks the ability to repair this assembly.

3) The Wye strainer is installed downstream of the backflow preventer. In order for the Wye strainer to perform its job and prevent debris from impeding check valve operation it must be installed upstream of the backflow preventer per manufacturer’s written  instructions.

4) Both check valves leaked on this DCVA because the internal assembly was filled with gravel, the contractor did not follow manufacturers written installation instructions and flush the lines before installing the backflow preventer.

It’s important to note: if the Wye strainer was properly installed upstream of the backflow preventer per manufacturer’s suggestion, it would have blocked the gravel from entering the assembly and jamming the check valves  in the fully open  position consequently leaving the city water supply unprotected.

Below is off of Watts basic installation instructions found on the 774 series:

Check with local authorities for installation requirements. Install valve in the line with arrow on valve body pointing in the direction of flow. Pipe lines should be thoroughly flushed to remove foreign material before installing the unit. A strainer should be installed ahead of the backflow preventer to prevent discs from unnecessary fouling.

CAUTION: Do not install a strainer when a backflow preventer is used on seldom-used water lines which are called upon during emergencies, such as fire sprinkler lines, etc.

Notify, Identify, Inspect and Observe

January 12, 2016

This is an example of why it’s very important to “IDENTIFY” and “INSPECT” every assembly.Notify, Identify, Inspect and Observe 1

I sent an unmarked copy of this photo to several colleagues of mine and I asked them what they saw. They all assumed the last backflow tester failed to restore service to this existing assembly on a residential fire sprinkler system.

The problem is they are only looking at the backflow shut off valves #1 & #2. They failed to see that the fire sprinklers “Inspectors test/drain valve is in the open position,” and the “sprinkler system pressure gauge shows 0 psi.”

I do not know why the backflow assembly shut off valves are in the closed position and the inspector test valve is in the open position on this occupied residential property. What I do know is, if I restore service to this fire sprinkler system I will cause the alarm to sound and may cause property damage.

All I can do is return the system to the way I found it after I completed the test, then notify the owner of the situation, as well as inform the water department using the comments section on my test report.

Remember your USC training: NOTIFY, IDENTIFY, INSPECT, and OBSERVE.

A Frankenstein Backflow Assembly

May 21, 2015

350ADA converted to an RPBA KCWD No. 20_1 of3350ADA converted to an RPBA KCWD No. 20_2 of3350ADA converted to an RPBA KCWD No. 20_3 of3Frankenstein

Pics 1 through 3:

Here’s one for the good bad and the ugly. This is a 350ADA which the installer had converted to a Frankenstein RPBA/DCDA? I don’t know what you’d call this thing.

It was installed in 2013 and the CCS at the water district inspected the assembly at that time, but because the vault is small the relief valve went unnoticed.

The 1st tester tested it is a double check and got acceptable values in 2013. In 2014 I tested it as a double check and got good values. This year I go to test the assembly and suddenly my feet get soaked. I bend down and discovered the relief valve. The relief valve must have been stuck closed for the 1st two testing sessions.

I immediately put the system back online and went to see the CCS at the water Department. I explained what had happened and he was pretty surprised as he also initially inspected the assembly. I asked him if I can legally return the assembly to factory specifications? Because it still had the factory DC check modules installed it would only require a bulkhead assembly, cover plate, etc. Of course the CCS told me that it did have to go back to factory specifications.

Bottom pic:

I wanted to know why the relief valve did not vent for two different testers with 2 different companies for the 1st two years.

Turns out someone had stuffed paper in the relief valve stem to keep it forced closed. Over time the paper must have compress and degraded, this explains why the relief valve did not dump normally when it finally did open. Obviously it could not open fully.

Click on photos to enlarge

Irrigation Reduced Pressure Backflow Assembly

March 3, 2015

Wilkins 975XL RPBA installed below groundI have just restored service for this improperly installed irrigation backflow assembly. This is a 1″ Wilkins 975XL RPBA which is installed below ground with no daylight drain. When this backflow assembly fails the box may fill with water and create a potential indirect crossconnection.

As a backflow assembly tester it is important  to note this on your test report  to relieve yourself of any liability.        Click photo to enlarge

Improper New Installations

January 18, 2015

Improper DCVA InstallsThe photo on the right is a good example of some of the improper new installations we run across from time to time.

Backflow preventer’s are required  t0 have 12″  of clearance below the assembly.  These look like they were installed  then covered up with dirt to set the boxes.

4” Ames 2000SS Check Valve Failure

December 12, 2014

WP_Ames 2000SS Cam Check_ProThis is a Cam Check out of a 4″ Ames 2000SS, the area circled in yellow is typical of what you will find when these assemblies fail.

These rubber parts are not replaceable and this cam check had to be replaced.

click on photo to enlarge