ChatterBank8 mins ago
Guttering problems
5 Answers
Rainwater runs backwards along the underside of our new gutter, and then down the outside of the downpipe. I seem to remember a similar problem with a bamboo water feature on Ground Force but can't remember what they did with it - involved a bead of silicone somewhere as I recall. Anybody know how to sort it out?
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Did you put up your new guttering Kit, or get someone to do it for you? If you paid a 'builder', get them back to do it right. On each fitting (or each section of gutter) there should be a rubber seal which is compressed when the next section is clicked in and seals the gutter. Either the gutter has not been clicked in fully or the seal is missing. If its a new gutter, its best to try and get it right. Silicone sealant will work, but you shouldn't need to use it on a new gutter.
Thanks, sddsddean - sorry, should have made it a bit clearer. It was put up by a builder whose work was otherwise exemplary (we're hanging onto him!!!) The joints between the lengths are fine, it's the end of the gutter where rain is meant to run off into the downpipe. Instead of dropping off the end, it's running back along the underside of the guttering for a few inches - just far enough to miss the collecting bit at the top of the downpipe (sorry, I'm not technical.) There's obviously sufficient fall along the gutter for water to be going in the right direction - it's not backing up anywhere, and is working fine except for the very end.
Kit, I'll bet as much as you like that the gutter is discharging into a hopper (as opposed to connecting directly into the drainpipe) and doesn't have a proper outlet fitted to direct the water into the hopper.
Where it discharges into the downpipe there should be a preformed outlet and not just the end of the gutter as it's been cut off.
Water does run back under any surface from which it discharges unless there is a steep enough incline to prevent this.
Buy a running outlet, (cost, less than �2), snap it into place and you'll have no more problems.
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