The Water Butt

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In order to fit a good water butt you must choose a downpipe from your guttering. Next cut the pipe and then direct it straight into the top of the water butt itself which is done with the aid of a rain diverter that should be supplied with the kit. Take an overflow pipe from the top of the butt and reconnect to the base of the downpipe. Note: If you are using the diverter you may find that an overflow is not necessary and providing the diverter is fitted lower than the top of your water butt it will stop filling as soon as it is full. Most Butts come with instructions and al you need. The only tools that you need are a tape measure, hole cutter and a drill. If you have cast iron downpipes, making the connection will be a nightmare, so upgrade to plastic or don’t attempt it. Hither Green Plumbers can fit bitts.

There’s no standard shape and size of downpipe so the kit provided may not work. Most merchants stock a great choice of pipework, so either pull off an existing connector (most are push fit) and take it with you or measure the external diameter and try and find one. Square pipes are easy to measure but for round you will need calipers or string and a ruler. Pull the string around the pipe and mark the two ends meet. Measure this distance. Divide the measurement by 3.14 (PI). A Hither Green Plumber can make this calculation. The resultant number is the external diameter of the pipe. You need to ensure that the inlet and overflow pipes are roughly the same size. If not the butt may overflow if it rains hard. Most kits can sort this by supplying n inlet that will only collect a small amount of water. There is a temptation to try and collect all the water, especially if you have a large butt and the water is coming off a fairly small area, but if you do this you must adjust the overflow accordingly.


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