All flow based systems can benefit from back-flow prevention installed on the inlet side of the system to prevent flow oscillation, back-flow or sharp pressure fluctuations from pushing into the property’s water main supply from the street’s public supply line potentially affecting flow or pressure readings. FloLogic now offers a Spring Check Valve with threaded union that integrates directly onto the inlet side of the FloLogic Valve System for your ordering convenience.
Many properties have back-flow prevention or pressure reducing valves (PRV) that can provide this buffer but often they are old and no longer work without anyone knowing until after they install the flow based system and see unusual readings. To avoid having to go back and install on a second trip after the issue is observed, it is advisable to install spring loaded check valves upstream of every flow based system installation.
They are helpful in preventing the misinterpretation of systems when trying to accurately read water flow into the property so they don’t false alarm or provide inaccurate flow or pressure readings. This can occur from municipal water pressure fluctuations or from variation in pressure from pool fill lines, irrigation lines or pressure pumps just upstream of the inlet side of flow based systems. Plumbers installing systems used to have to find and supply check valves but Flologic now offers their own branded and integrated check valve that offers convenience and cleanliness of installation in one. Code may require that thermal expansion is compensated for when installing any back-flow prevention devices so check with your plumber to be sure if you need a thermal expansion tank added or if you already have one.