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I’m having strange things happening with my plumbing.

My kitchen sink does this really weird thing where the water starts out with good pressure, then slows to about half pressure (or water volume? not sure of the terminology) within a minute of the tap being open. After about 60 seconds, the water suddenly returns to normal then repeats the process, OR if I turn the water off then immediately turn it back on, the pressure returns to normal.

This seems to happen more with the hot water than the cold.

When I turn on the hot AND cold water together the flow is even weaker (ie: usually it’s stronger when you have both taps open). When you turn off the cold again, and the hot flows stronger.

Also, if you turn on the faucet downstairs in the garden level and the water in the kitchen slows down – if you turn on the garden level bathtub, it slows to a trickle.

Any ideas what could be causing this? It’s really strange.

Oh yeah – overall the water pressure (or is it volume? not sure about the terminology for this) in my house isn’t great. I’m praying I don’t have to have the water main replaced.

I’m halfway convinced it’s a poltergeist or that thing living in Sigourney Weaver’s fridge from Ghostbusters.

Any plumbers or exorcists out there who can help?