Recent content by petec

I like Bon's cold feed to waterbutt solution which possum_jenkins also mentioned earlier. Presumably this would work with a bottom entry Torbeck valve for shutting off. The beauty of this solution being that you don't need to be bothered with switching feeds - just flush the loo, and it's up to...

See top of this thread. The idea's a simple one - to use rainwater for flushing when there's enough in the waterbutt outside (wall mounted higher then the cistern), or switch to mains when there isn't. The obstacle seems to be having an inlet valve which can cope with HP from the mains and LP...

I like the lo-tec bucket solution, but guests might not appreciate it - there's also the hassle of keeping the bucket filled. OK, here's how someone could make a fortune. Design a double cistern - mains feed with HP valve on one side, rainwater feed with LP valve on the other. 2 flush levers...

Hmm...it's ceramic, with no extra holes. But I'm not giving up - there MUST be a way of doing it - it's such a simple idea!

Sorry to interrupt guys... I thought of the 2 separate entry ball valve solution too. How easy is it to drill an alternative entry hole through a cistern though?

Thanks for these helpful replies. What about the Fluidmaster floatvalve that claims to be suitable for LP and HP systems: www.bes.co.uk/products/120.asp Do you reckon that could work? I can live with a slow filling cistern, and the rainwater butts outside smell OK, so I'm not worried...

I've plumbed an external wallmounted rain waterbutt to my downstairs toilet cistern - with a tee connection to the mains feed, so I can use mains water when not enough rain. I've fitted check valves on both feeds to prevent backflow. However, the cistern doesn't refill from the waterbutt which I...