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  1. DAJ1961

    Disimilar Pumps in Parallel, Pressure problem. Pumps or piping issue?

    Thank you all for great replies. I posted a picture of the mixing valve board so you can see the position they left the valves in. PS. I have the drain valve in the wrong position after the recric pump, it is like the drain on the other side... I am going to run a series of tests tomorrow and...
  2. DAJ1961

    Disimilar Pumps in Parallel, Pressure problem. Pumps or piping issue?

    Sorry, I thought my file successfully attached... Here it is now. Could this just be thermal expansion and need an expansion tank? It seems like a significant delta P... Thank you...
  3. DAJ1961

    Disimilar Pumps in Parallel, Pressure problem. Pumps or piping issue?

    Hi All. First time posting and looking forward to reading more on this valuable site. Here is my current problem. This 5 story 5 family building with 5 bathrooms, 5 kitchen sinks and dishwashers needed to have a Gould Aquaboost II installed 7 years ago because the City water pressure was only...
  4. DAJ1961

    Stray Voltage on residential gas piping, impact to threads and pipe dope

    I am wondering if anyone has any experience or testing data relating to an electrical and gas service line coming in through the same point of entry and where significant corrosion on both the electrical conduit, and the gas pipe casing is witnessed. Here is what I observed and experienced. I...

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