des

I think you can rent bigger size hole cutters.

This is good info Mitch. Dove, my 52' cruiser stern narrowboat, lays on the north Hollands canal in Amsterdam, The Netherlands during the summer season. The water looks a bit green but in the summer most people, including myself, just dive in the canal for a wash. No ones showing ill effects yet, but it's hardly ideal! I go to marinas to fill up the 800Lt water tank once in a while, but that's a three hour job with the lock in the way. I'd prefer to filter canal water for washing/drinking, possibly with two levels of filtration: a swimming pool filter (what sort of media to use?) for normal washing, backed up buy a cartridge filter/s for drinking water. I'd then install an LPG instant hot water boiler fitted with a flame failure device having no pilot light plus a closed room flue (safe). I could then ditch the calorifier and just keep a small water tank for emergencies (a floater drifts by!) I'd then have extra storage where the water tank was, and I'd stick the filters and LPG heater where the calorifier is. I'm now looking at high flow filters which will be a bit more expensive I expect.

Dove, my 52' cruiser stern narrowboat, lays on the north Hollands canal in Amsterdam, The Netherlands during the summer season. The water looks a bit green but in the summer most people, including myself, just dive in the canal for a wash. No ones showing ill effects yet, but it's hardly ideal! I go to marinas to fill up the 800Lt water tank once in a while, but that's a three hour job. I'd prefer to filter canal water for washing/drinking, possibly with two levels of filtration: a swimming pool filter (what sort of media to use?) for normal washing, backed up buy a cartridge filter/s for drinking water. I'd then install an LPG instant hot water boiler fitted with a flame failure device having no pilot light plus a closed room flue (safe). You could then ditch the calorifier and just keep a small water tank for emergencies (a floater drifts by!) I'd then have extra storage where the water tank was, and I'd stick the filters and LPG heater where the calorifier was. Has anyone navigated the possibilities of such a system and it practicability. Thanks in advance Des