Hi ho High hose!

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AndyS

Hi from the newbie..

My customer wants to run a garden hose from the cold mains supply in the kitchen on the first floor. They used to disconnect the dishwasher inlet hose and use that tap, but they now want an additional tap so they don't have to keep doing this.

No access to water on ground floor as supply is on the side of the building opposite to the side her garden is on. From the tap just a garden hose will be connected to the new tap as they used to do. Keeping the cost down.

Here's where I need your advice: Given that the mains supply is so much higher than the garden, do I still need to use a double check valve? I cant find a section in the regs to cover this situation.

The space on the mains pipe is very tight as this will then mean three hose taps in a small place, below the isolater valve.

If I do need the double check - where do suggest I site it? I'm worried that if I fit the lot above the iso, there won't be enough pressure going through the very long hose.

Thanks
Andy
 
Welcome to Plumbing Forum | Plumbing Advice | Plumbers Forums | A forum for plumbers advice in the UK!

Welcome to UKPlumbersForums.co.uk AndyS. Thanks for introducing yourself.
 
Should I have posted my question in the general forum instead of the intro? Sorry
 
Always put one on mate for the sake of £2 it's not Worth not putting one on.
Some good England that.
 
Thanks for your welcome messages and the advice, I'm already thinking you are a good gang. Steve - its not about the price of the valve, its the lack of space on the pipe and the extra work involved. Other problem is their landlord won't allow a pipe to be run outside, along and down the 'shared' wall. That's why they need a hose, which is viewed as 'non fixture'.

So, now I know for sure I need the valve, any advice on where to site it? I don't want to look an idiot when I go back! They have 300mm of mains supply copper pipe before the iso valve (stopcock style tap) and already have 2 self cutting taps on there, 1 to DW, 1 to WM. Leaves me 100mm of pipe to work on, right at the bottom of the cupboard.

All advice appreciated. BTW am I right in thinking there is insufficient pressure above the iso?

Thanks
 
T into the 100mm with endfeed and come across the cupboard with dcv and then out of if there is no room city plumbing do a tap pack with a double check built into a compression elbow should free up some space.
 
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