ᐅ Planning Plumbing for a Pool in the Basement

Hello everyone,

especially with these temperatures, we realize that we would really like to have a pool in our new build. Financially, it will probably be tight, so we would prefer to only install cellar conduits and pipes now to avoid later core drilling and surface-mounted wiring. For the exterior work, we will then see if funds are available or if we need to postpone it. Most of the work will be done by ourselves, but I currently don’t have time to deal with the technical details (skimmer, chlorine, etc.). That will come once the house is ready to be occupied.

I would like to plan the equipment in a separate garden shed, so it should basically be just about the inlet water, wastewater, and electricity.
The location of the future pool is actually quite well known, so I would probably proceed as follows:

• Lay a wastewater pipe from the planned pool location to the house’s wastewater pipe. Seal off the pool-side access.
• Run the inlet water pipe deep enough through the cellar to be frost-free and connect it at the same point as the pool’s wastewater pipe.
• Lay an empty conduit for the electricity to the future garden shed at the same spot, so everything can be “found” at once. (I have a SAPOS connection and can map and relocate positions with my GPS device to within less than 1cm (0.4 inches) accuracy. I bought the device for my forest.)

Can I just tell my planner this, and will they then select the correct sleeve in the waterproof concrete structure accordingly? How would you install it? Do you need anything else besides these connections?

Thanks and best regards
Gerald

GeraldG schrieb:

Do you need anything else besides the connections mentioned?

Possibly an appropriate line to the heat pump, so you can heat the pool with the heat pump (this would be a second heating circuit and is quite common for many heat pumps).

Yes, I have already thought about that because it would be great to use the heat pump for that purpose. However, I assume that the heat pump for a KFW40 house will be around 5 kW, which is rather low for a pool. Installing a larger one in the basement, which would then operate much less efficiently, wouldn’t really be an option. Therefore, I would probably plan for an additional pool heat pump.

How premium do you really need it?
For a "standard" pool, electricity is enough (ideally at least 3 separately switched circuits, better more, or place a control unit close to the pool).
Water supply and drainage are just a bonus.
I agree with you about the heat pump; those pool units are probably cheaper than a second heating circuit.

julimos schrieb:

How premium do you need it to be?

I'm more of a practical person. Sewer pipes aren’t that expensive if the excavator is already digging out the basement. If the alternative means I have to use a garden hose and a submersible pump to empty the pool, that’s an easy choice for me.

The same goes for fresh water. It doesn’t cost much to install it while planning, and that also allows for automatic refilling. Alternatively, regularly hooking up a garden hose to the pool doesn’t have to be the case.

GeraldG schrieb:

I assume that the heat pump for the KFW40 house is more likely around 5kW, which would be quite low for a pool

It depends on the pool size and the period during which you want to heat it. For example, with 30 cubic meters, I agree with you, that would be too small.