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Originally Posted by Nova Filtration
We truly value your trust in our water filtration systems and take product concerns very seriously. We would always want to clarify the cause of any isolated canister leaking and ensure you the customer has the right guidance to keep your system running safely.
Canister leaks are not the result of faulty product but rather excessive incoming water pressure or in instances hot water expansion tanks. All filter canisters are designed and tested to withstand normal residential water pressure upto 90PSI; however, if water pressure exceeds recommended levels, it can place undue stress on the housing.
Our recommendations: We strongly advise installing a pressure regulator if your homes water pressure is higher than the recommended range (typically 40-80 PSI). This not only protects your filtration system but also helps extend the life of other plumbing fixtures in your home.
Please rest assured that our products are manufactured with high quality materials and undergo rigorous quality checks. When installed with the proper pressure regulation, they provide safe, long-lasting performance.
If you have experienced an issue, our customer support team is here to help troubleshoot and provide replacement guidance. All of our systems are under a one year warranty with an available five year warranty.
Thank you for being one of our valued 25,000+ customers and allowing us to provide you with properly filtered purified, safe water for your home.
Bob, Brad & Shane
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A Pressure Regulator Only works on Flowing Water. It will not reduce pressure when the supply line has a check valve installed, the water heater is working, and the expansion tank diaphragm is not functioning correctly. You have to go back to plumbing code designs 20 to 30 years ago when there were thermal relief valves on the water lines that relieved excess pressure to the outside via the discharge lines through the walls. These were eliminated by changes in the plumbing code when expansion tanks were required. However, the problem is that expansion tanks can fail and the hot water pressure can rise to the heater safety valve setting which is 125 psig or more.
One way to minimize the pressure build up during no water usage is to shut off the water heater when you are away and or keep a few drops dripping from a faucet. This way the internal water pressure should not increase above the water supply pressure even if the expansion tank is not functioning. There is no closed volume being heated up resulting in expansion of the closed section of water which would increase the house internal water pressure.
Alternatively, the filter housing etc. must be designed to withstand the pressure equal to the water heater safety valve setting just as the water heater is designed.