On Friday 26 July 2013 13:54 Broadback wrote in uk.rec.gardening:

On 26/07/2013 12:28, Tim Watts wrote:
On Friday 26 July 2013 09:57 Broadback wrote in uk.rec.gardening:

I have set up three rainwater butts, linked at the bottom. works quite
well but from time to time develops a leak in one joint or another. I
have been looking at larger storage tanks, but they seem ridiculously
expensive. Any suggestions?

Make better joints.

What fittings and pipe are you using now?

The ones normally supplied with butts, using flexible piping.

Oh. That's your problem then.

I would look at either proper plumbing fittings (tank connectors) and some
plastic pipe (eg JG Speedfit or MDPE) between them. 22mm pipe will be
enough.

Or visit a Koi pond supply shop - they usually stock a wide range of tough
tank connectors and flexible pipe.

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