Hi,
I've got a few queries regarding my really shity water pressure.

Water pump is at base of water tanks and needs to pump it upwards - highest point say 2.5 storeys.  HWC is low pressure with wetback attached.  Looks like 20-25mm pipe enters house. Also have a pipe out the roof of approx 3m tall.

Inlet pipe to HWC is only about 15mm and with various connections attaches to your UFO valve and into HWC. From UFO valve to HWC is 20-25mm pipe.  On top of HWC 20-25mm pipe exits which I assume disappears all around the house to the hot water taps etc.

Hot water pressure downstairs (below HWC) is very good which I guess is due to gravity. Upstairs its quite crappy and I'm sure I could pee further.

Questions:

Is inlet pipe of 15mm too small for HWC? Would I be correct in thinking that I may have correct pressure acheived but volume of water just not enough?

Water Pump is an Onga with a pressure tank on top. According to guage it pumps to about 42 PSI and cuts in again at about 25 PSI. Presure varies with pump cutting in and out. What would be the best sized pump or what would be the ideasl features to have if I were to buy a new pump?  Connecting to town water not an option now Auckland Council want $8000 so they can .......off

dave 09 4284580  Whangaparaoa




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