Garage water supply

[GSXRCarlos]

Hi,

I'm looking to supply hot and cold water to my garage. The pipes i'm planning to connect from are 15mm under my kitchen. Wouod you recommend using 15mm pipe, or 22mm pipe out to the garage? Garage will be used for wshing machine, washhand basin and my hosepipe.

Thanks in advance

 

[Riley]

How long are we talking on the runs ?? 15 mm should be fine just ensure that you insulate

 

[GSXRCarlos]

approx 10m runs, in a duct the runs under my patio at approx 500mm deep

 

[Riley]

Perfect world should be 750-1350 deep to avoid freezing and to protect pipes from above traffic. Your hot might be struggling to stay hot at that distance. Maybe an over sink water heater might work better for you

 

[GSXRCarlos]

Thanks Riley, the duct is already in so i'll make it work.

As for the hot water, i have a big silly wood burner - i'll give it a whirl!

 

[Riley]

Well it's more a case of the water cooling along that 10 meter run. Seems a little excessive to put a secondary return on it

 

[Riley]

Also you're running the risk of the water cooling and creating legionella should the tap not be used for a while

 

[plumben]

As above, if it was me i'd run only cold feed to the garage in one length of plastic pipe, make sure its well insulated and inside the house fit a full bore lever valve, double check valve and drain off,

then just fit a over or under the sink heater for the hot tap