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Water butts connection to drainpipes

elderberryelderberry Posts: 118
in Problem solving
The 'correct' position for the outlet from a drainpipe to a butt is to have the exit from the drainpipe at the same level as the inlet to the butt. However, I find that this slows down the rate of flow into the butt enormously, and in fact a slight downhill incline is much better, but then risks the whole thing overflowing when full. Do you have your own preferences when it comes to dealing with this situation?

Posts

  • nick615nick615 Posts: 1,487
    An overflow pipe from 'full' down to the drain could solve the problem OR, if saving water is important, multiple linked butts can be useful.  All interlinked at the tops, with taps at the bottom.  As soon as the one furthest from the down pipe produces none from its tap, move to the next and so on (not forgetting to close the taps as you go!).
  • GemmaJFGemmaJF Posts: 2,286
    edited June 2020
    I have the same set up as @nick615 describes above, my down pipe goes straight into the butt, I then run an overflow pipe to the drain. It's easy to do with one butt or have several linked together with the same medium bore corrugated piping. Most manufacturers of the plastic butts have the pipe and connectors needed readily available and the butts usually have the hole with thread already moulded into them, just need to remove a blanking plug and add the fitting for the pipe.
  • steephillsteephill Posts: 2,841
    As long as the internal overflow in the drainpipe diverter is below the top of the butt you shouldn't get any overflow problems.
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