mike_ie wrote: » Where's the nearest water line inside the house? That's doing to be the deciding factor, ultimately.
alex_r wrote: » All sources far away from the garden. Kitchen is on the opposite side of the house, toiltet/bathroom first floor in the middle of the house, surrounded by bedrooms. The water tank on the roof in the only one I can think of.  Hence I thought maybe someone in here had this issue and solved it.
2011 wrote: » If it was me I would: 1) Get permission. 2) Tie up the ballcock so the water tank won't fill. 3) Drain the tank. 4) Cut the tank outlet pipe and install a T piece on it. 5) Use the T to supply the garden pipe. 6) Insulate the garden pipe to prevent freezing. This would be preferable to connecting directly to the tank as it would be harder to get a good connection to the tank.
chooseusername wrote: » Turn off water , tap into rising main in loft.
charlesanto wrote: » NOT THIS ...
2011 wrote: » Interesting, why? I would have thought it was better and normal practice to supply all taps except the kitchen sink cold tap from the tank in the attic.
mike_ie wrote: » Long garden hose - far better chance of getting usable pressure from a direct mains connection than from a gravity fed tank.
alex_r wrote: » Thanks, everyone for ideas. From what I understood connecting directly to the tank in the attic is not a good idea due to low pressure. It is better to connect to the rising main pipe(I guess that's the one going to the tank from the mains to fill it up?). Anyhow, it looks doable and something I can approach my landlord with.
alex_r wrote: » Are they are special valves I need to add to avoid backflow? Or that's shouldn't be an issue?