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Hi, In my project, we have an old hydronic heating system with boilers. However, i saw some old pipes coil that were installed as radiators. I have to remove this and replace it with an unit heater. I have to convert the heating load in order to be able to do the selection. Can somebody help...

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Hi, Recently, I have visited an old building with hydronic heating system. However, I have noticed a lots of pipes are rusted and there's leakage. The plumber has shown us a section of clogged pipe. In addition, I saw spots of rust on the radiator, the landlord told me that the radiator also...

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The pressure at the inlet is variable from 55 to 84 PSI, I would like to maintain the pressure at 60 PSI maximum at the outlet.

Upstream = inlet thanx

Hi, What happens when the upstream pressure is lower than the adjusted pressure in a pressure reducing valve? Thank You!

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Hi, I still don't understand the design because both models are submersible.

Hi, I would like to know what's the difference between a submersible dry pit pump and a submersible wet pit pump? Thanx

What about the accessibility for a regular maintenance? Is it better to install the apparatuses inside or outside the bassin? Thank you!

Hi, I want to know if it's better to install a check valve in the bassin or outside the bassin? Can the distance between the pumps and the check valve affect the flow and the pressure of my system? I have a duplex grinder pump in a 6 feet height bassin. Thank you!

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Hi, I want to connect a 2" pressurised pipe to a 4" pipe that works by gravity. Can somebody tell me how the connection works? Do I have to put something special to reduce the pressure. The pipe are pressurised by a dual sewer pumps. Thank you!

Hi, What's the pipe size for a hot water recirculation system? And how to select a pump for that? What's the flow we have to consider? Thanx!

Can someone tell me what he thinks about my system?

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Hi, I would like to know how the hot water supply works for tall building with a common water heater in the basement. The building have 11 stories. Do I need a water booster pump for the hot water loop? Thank you! Mec