PEM or PVC hose for the heat pump to the pool.

[JF.]

Does anyone know which hose is commonly used for digging into the ground between the pool and the heat pump? I will run the heating pipes through these later. I've been told that pvc-hose and pem-hose can be used.

 

[Krilleman]

PEM is normally used for that in the ground.

Do you mean that you will run the heating pipes in these later? Do you mean the ribbed PVC hose that normally comes with the heat pump?

 

[JF.]

PEM is normally used for that in the ground.

What do you mean you will later pull the heating pipes through these?

I thought PEM was used only as a protective pipe, but is it used in other ways?

 

[Krilleman]

To and from the pool, it's quite normal to use PEM. Up to the heat pump, it's beneficial to be able to glue PVC pipe (obviously with some type of union coupling); some installations also have PEM to the heat pump.

It all depends on how the equipment is positioned relative to each other. Close? Far away?

 

[JF.]

To and from the pool, it's quite normal to use PEM. Up to the heat pump, it is advantageous to be able to glue PVC hose (certainly with some type of union connection), some installations also have PEM to the heat pump.

Everything depends on how the equipment is positioned relative to each other. Close? Far away?

It will be between 10-15m between the pool's technical room and the heat pump. What dimension is appropriate for the hose? Someone said 50mm, seems a lot.

 

[olofh]

I think pem is cheaper but the pvc hose is softer and more flexible to handle. I used pvc all the way but mostly because I got hold of suitable lengths from other people's constructions/remnants.

 

[Krilleman]

And if you have some kind of technical space, then the PVC hose is nice (purely aesthetically) to glue into the coupling directly.

 

[FredrikR]

The distance will be between 10-15m from the pool's technical room to the heat pump. What size of the hose is appropriate? Someone said 50mm, that sounds a lot.

Go with 50, you don't want less at those distances. I have 50mm myself, and everything is 3m behind the pool. And glue with Tangit or something similar.

Check with companies that sell equipment for garden ponds; these are usually the same items pool companies sell but at a different price!

 

[NoOne2k]

I would have gone for 50mm or 63mm PEM pipe in the ground and PVC above ground. The main reason to choose PEM is the cost. If you buy PEM pipe in a roll, it tends to want to curve a bit, so it's neater with PVC pipes where the pipe is visible. I would assume that glued PVC joints are cheaper than PEM fittings. There is PEM pipe available in straight 6m lengths, but it's a bit less common.