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#1 Check Valve seized/stuck on a 3/4" 975XL2 Wilkins. Just needed a quick clean up and o ring/gasket replacement. https://www.instagram.com/p/CrdmKtvr-i4/?igshid=NGJjMDIxMWI=

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Febco 825Y outside of a pump station below a reservoir tank. This backflow was for the irrigation and only had only 24 PSI. During the initial test the relief valve opened at 1.6 (and therefore failed because it opened at less than 2.0 psid). Opened this one up, replaced rubbers in the relief valve and #1 check valve. https://www.instagram.com/p/CrWwylNPsNS/?igshid=NGJjMDIxMWI=

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This backflow feeds the local library. It sucks when the shut off valve handles are missing. So I tried using a valve stem wrench. It works great if the valve stem isn't seized and isn't rounded. It worked on the #1 shut off valve. I had to carefully use a pipe wrench for the #2 shut off valve. Replaced all rubbers and got this old sucker to pass. https://www.instagram.com/p/CrRHYRTpGdT/?igshid=NGJjMDIxMWI=

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Well drilling in progress. I'll always support being able to produce your own water if you are able. Water's a natural right as far as I'm concerned. But, once they hit water there will be a new hazard on site: an auxiliary water source. So they'll need to install a backflow assembly to protect the potable drinking system. At $1,000 per 50 ft I hope they find water soon! https://www.instagram.com/p/CrJ5lbWPTvc/?igshid=NGJjMDIxMWI=

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Backflow assembly for apartments had been leaking for hours. Showed up, flushed from the #4 test cock and the relief valve stopped dumping. Easy one for a change!! https://www.instagram.com/p/CrEZJbjvoL7/?igshid=NGJjMDIxMWI=

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This ones an interesting case. A local bank discovered their PIV (Post Indicator Valve) wasn't working. They decided to start digging to replace it with another PIV. In our district, when PIVs stop working, we require they be replaced with an RPDA. One of our staff noticed they had started digging and alerted our Cross-Connection Specialist, which then contacted the Fire Department because they oversee Fire Protection Sprinkler Systems for all buildings. Long story short, the bank found out they had just signed up to upgrade to an RPDA. Naturally they didn't like that suprise, but they had already initiated the process when they started digging. So, their site looked like this for weeks, with the building under Fire Watch until their corporate office finally scheduled the upgrade. This is the new RPDA, which will need to be tested as soon as its connected. https://www.instagram.com/p/Cq5n2n_p18N/?igshid=NGJjMDIxMWI=

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Broken stem on a 3/4" Wilkins Relief Valve This was in a median in the middle of a busy road. Make sure you practice safe traffic control practices when you have these kind of jobs. Pretty simple fix as long as you have a spare stem. https://www.instagram.com/p/CqwLWxjv_9u/?igshid=NGJjMDIxMWI=

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Backflow Protection at a fast food restaurant. There are multiple hazards in any food processing facility such as bakeries, breweries, frozen yogurt/ice cream places and restaurants. Industrial or commercial examples include slaughterhouses, packing houses, frozen food processing plants, beverage manufacturing facilities and canneries. Some examples of hazards that can exist at any of these sites include reservoirs or cooling towers, steam generating lines, water cooled equipment, fire fighting systems, pressure cookers, washers, irrigation systems, dehydration tanks and recycled water systems. An RP at the meter ensures one of the greatest protection options against any and all of the potential hazard threats listed above. https://www.instagram.com/p/Cqd9L11v4N9/?igshid=NGJjMDIxMWI=

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Construction sites pose a variety of cross-connection hazards. There could be chemical, biological, and physical pollutants and contaminants that have potential to backflow into the drinking water supply. There may be equipment that is used that can be cross connected with the drinking water supply that creates the potential for backflow. This site is being developed into a shopping center and apartments, with an open area accessible to the public. We don't know what construction workers or companies may do at those sites, so the best form of protection for the potable water system is an RPDA. This site has 2 different 8" Wilkins 375 ADA RPDA backflow assemblies, one at each branch to the potable drinking water system, and when properly operating, provides great protection against potential backflow. @water @zurnindustries @americanwaterworksassociation https://www.instagram.com/p/Cqa4yhCJXTs/?igshid=NGJjMDIxMWI=

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Backflow leak at a clothes store! Our District got a notice about flooding on one of our main roads. We traced the water back to this building, a Ross Department Store. There was a steady stream coming from the pipe on the wall in the lower right by the yellow tarp, but we didn't know where the water was coming from. The fire fighters checked the roof and inside the store for the leak but they couldn't find it. But they could definitely hear it and they could see the water starting to creep into the dressing rooms. The fire room was right to the left of the the flowing water, so they tried to open the door and couldn't, so they ended up breaking in... and then we saw the leak - a leaking RP with what appears to be a bad relief valve. I wanted to jump in and fix it, but inside the building is what we call "private", so I had to leave their maintenance people and plumbers to take over. Anyway that was kind of a cool call, doesn't happen everyday. https://www.instagram.com/p/CqUNZkMr4m8/?igshid=NGJjMDIxMWI=

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#1 Check Valve Failure or Leak (Held at 3.5 psid) Testing a backflow at a dog park was interesting. Showed up and there was no one there at first. During the 3rd test the #1 check valve value kept falling to 4.0 or 3.0 psid. So I cracked it open, and everyone and their dogs started showing up. All the dogs wanted to check out the backflow testing, as they should, cuz its freakin rad. Got a few good pictures of em. Replaced the disc and rubbers on the #1 check valve, cleaned the poppet, re assembled, retested and the #1 check still wouldn't hold above 5.0 psid. Then I replaced the disc and rubbers on the #2 check valve, cleaned the poppet, re assembled, retested and the #1 check still wouldn't hold above 5.0 psid. Finally, I opened up the relief valve and replaced the diaphram, reassembled, and it finally held above 5.0 psid. https://www.instagram.com/p/CqQslpSvXS8/?igshid=NGJjMDIxMWI=

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How to diagnose a (small) #2 Shut Off Valve Leak with a 2 needle field test kit. Tested a Watts LF 009 M2 QT 2" today in the chlorine room at the community pool. During Test 1, I couldn't get the relief valve opening point to drop. It stayed above 5.0 PSID. After I closed the control valves, or bleed valves (depending what field test kit is used) I opened and tried to reclose the #2 SOV (Shut Off Valve). Then I opened the high side bleed valve 1 full turn (on a 2 needle) and opened the low side bleed needle valve 1/4 turn. The relief valve value still wouldnt drop. I closed the low side bleed needle valve. I connected a temporary bypass hose to the #1 TC (test cock) and opened it to bleed air from the hose. Then I connected the other end to the #4 TC. I opened the #1 TC, then slowly opened the #4 TC. The reading remained above the relief valve opening point. I opened the low side bleed needle valve 1/4 turn and the reading finally dropped to the relief valve opening point at 2.7 PSID. Next, I closed the low side bleed needle valve. I bled water through the #3 TC by loosening the low side hose, and once the reading was above the apparent #1 CV (Check Valve) reading I retightened the low side hose. I can now record the #2 CV as "closed tight", and record the reading on the field test kit as the differential pressure across the #1 CV. ...I swear it's simpler than it seems! I thought I would write out the steps to explain the process..., and it does seem like a lot, but I'll simplify them in another post. https://www.instagram.com/p/CqL9p_bPYQQ/?igshid=NGJjMDIxMWI=

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Being in Southern California, we're definitely grateful for all the rain we've been getting recently. We're even more grateful for the backflow prevention we have in place to protect our water systems. Celebrate World Water Day and thank water professionals today! These professionals are part of our critical infrastructure and I honestly believe they aren't thanked enough. Sometimes it feels like people don't see or are unaware of the work it takes to keep our water infrastructure maintained. It's a thankless job (sometimes), but someone's gotta do it. And that someone is us. 💪💪 https://www.instagram.com/p/CqHSPfWL8Te/?igshid=NGJjMDIxMWI=

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Multiple Backflow Prevention Assemblies at a Water Treatment Plant. There are multiple chemical (ammonia, chlorine etc), irrigation and auxiliary water supply (raw water, reservoir lake water and final water product) hazards here. Backflow Prevention starts here at the source!! #waterindustry #crossconnection #waterwise https://www.instagram.com/p/CqCNc2yrN64/?igshid=NGJjMDIxMWI=

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Multiple Backflow Prevention Assemblies at a Water Treatment Plant. There are multiple chemical (ammonia, chlorine etc), irrigation and auxiliary water supply (raw water, reservoir lake water and final water product) hazards here. Backflow Prevention starts here at the source!! #waterindustry #crossconnection #waterwise https://www.instagram.com/p/CqCNc2yrN64/?igshid=NGJjMDIxMWI=

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Here is one of many backflow assemblies installed on an irrigation line for a golf course. The hazards that irrigation present include but are not limited to: chemical (fertilizer, herbicide, pesticide) biological (untreated auxiliary water sources such as wells) and physical (dirt or other debris that could get into the lines during breaks and repairs) Visit backflowexamprep.com to learn more and prepapre for your backflow certification exam!! https://www.instagram.com/p/Cp-qo6zPFIO/?igshid=NGJjMDIxMWI=

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Backflow Exam Prep

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