A notion occurred to me today for my detached garage-workshop conversion. It would be useful to have a small sink with a cold water supply tucked away in one corner, but I can't run a proper water feed to it from the incoming main (or anywhere else in the house). As it would only be for occasional and limited (and non-drinking) use, would it be practical to set up a roof-level rainwater tank and take a supply from that? The tank could have an overflow to the same water butt that's currently fed from the garage's gutter. In dry spells it would be easy enough to top up the tank from a hosepipe if necessary.
Obviously, the output from the tank would need to be filtered, and that's where I see a possible snag. Wouldn't any filter get clogged rather quickly? A filter in the tank would be pretty inaccessible, but perhaps something cold be rigged up in the supply pipe? And perhaps a mesh covering over the top of the tank would help?
Maybe this or something like it standard practice in these eco-conscious days and I'm asking the obvious. Apologies if so, but any thoughts will be very welcome. Thanks.
Bert