Burst pipe - water flow from both ends

[caseyjay]

Hi, I have a raised floor in my kitchen, presumably to cover pipes not buried in foundation. I am reducing this slightly and pierced a 16mm (I am in France) copper pipe which I was not expecting to find

I cut out the mid section as I would be burying this anyway and capped off the feed end, or so I thought.

Water flows out the pipe coming from the sink so I capped that one off instead. I only had one end fitting and as luck would have it water flowed from the other end as well.

Have now sorted the leak but wondering what this is for? I think my hot supply is on some continuous loop as is fed by pump/immersion, could it be that?

More curious at this stage...thx

 

[DP]

Last hot draw off point may be going back to the cylinder
Purpose of this setup is to give you instant hot water at any tap

 

[caseyjay]

ok, I think you're right there - it's just the pipe is running in the opposite direction to the cylinder but without breaking up the whole floor I wouldn't know...

if that is the purpose, then something's not working rigth - it takes a good minute to run hot downstairs and longer upstairs. Cylinder is on ground floor but about 18m away. Is that a big issue?

It has a pump on the circuit but has manual switching - was thinking of installing a flow/reed switch if that might help?

 

[Echo the husky]

A timer is more usual for a secondary return pump, set to come on during the normal hours that HW is used.

 

[dilalio]

Is the pump bronze?

 

[Steelmasons]

Is the pump bronze?

....or possibly stainless as they are now..

 

[dilalio]

Is the pump bronze?

....or possibly stainless as they are now..

In France!!! When just a "few" years ago the wc was a hole in the ground!!