Our Water Butt pipework is a UV resistant Polypropylene pipe which is ideal for use with garden water butts. This pipework has an internal diameter of 26.5mm and an external diameter of 32mm, this makes it perfect for water butt connectors and taps. As shown in the image below the Hose Tail can be placed through a pre-drilled connection point with an inside diameter of 20mm: Once you have pushed the hose tail through the connection point, the washer and nut can be screwed on from the inside as shown in the image below: This Hose Tail has an outside diameter (O.D.) of 20mm, making it suitable for use with a water butt or tank that has a connection point with a 20mm inside diameter (I.D.).

I use the tap to join a hose to the next waterbutt so that they maintain level. I don't care how slow that is, by "tomorrow" they will all have the same level again. If you’re looking to build a linking kit or attach some hose to your tank or water butt, this Hose Tail is also suitable for use with our 20mm I.D. / 25mm O.D. Extension Hose. Must admit that I haven't properly understood what you are trying to do with the hose, but I presume attach it to the tap on the water butt and then ... what? Let it flow out of the hose at a level lower than the tap on the water butt? or something else. On a similar basis - you usually have a header tank in your loft for you to have enough water pressure (gravity drop) to feed a shower - unless you have a pump on it.As well as being compatible with our Gutter Mate Diverter & Filter, this White Extension Hose 20mm I.D. / 25mm O.D. (Per Meter) will help with a range of water butt arrangements. Head" is not very much - the height of the water level in the butt. Maybe 3'? That's not enough to provide much pressure. The hose. 1/2" - given the low flow rate from the tap, and low "Head", the frictional loses on 25M of hose will be considerable. Repeat the watering can filling test, but using the full length of the hose (already primed). Put the watering can in the original position (under the tap) but fill it from the end of the hose instead. Presumably that is even slower than when filled from the tap direct? So my advice to anyone thinking of getting a water butt is to consider one with a decent width / opening at the top and/or a bigger bore tap at the bottom. If I expressed that badly in my earlier post I'm sorry. The outlet of the hose (nozzle end) would have to be below the inlet (where it's attached to the butt) for any water to come out. You're using a gravity feed siphoning effect and there can't be enough pressure to bring the water out.

The tap - pathetic diameter, so low-flow. How long does it take to fill a 10L watering can if you put it under the tap - a minute? more perhaps?Personally I wouldn't even fill a watering can via the tap, whiling away my life waiting for it to fill each time. I have a large galvanised circular tank as a water butt. It has a lid, but slid halfway-off, or removed, I can dunk to watering cans at once and they will within a couple of seconds. I've recently got a water butt in my garden which is working fine. But I'm having an issue connecting a hose pipe to it, when i do it either spills out of the top or doesn't generate enough pressure to get the water to the end of the hose pipe. Can anyone advise me if there is something i should be doing which I'm currently not.