I have noticed that the water circulating through underfloor heating systems can become particularly dirty, especially during the winter season. This assertion is supported by the dark color of the water that is flushed out each time the pump is cleaned. To address this issue, I propose using a 10-inch diameter white water filter to remove impurities from the water before it is circulated through the system. This solution is yet to be tested, and I would appreciate any feedback on its feasibility.