On Aug 9, 7:34*pm, wrote:
I'm thinking of fitting semi-permanent pipework in our greenhouses
(and maybe some other places) with a time switched pump to provide
irrigation. *The pump will use rainwater collected from the roof in a
tank which will be topped up by mains water with a simple ball valve
controlling that. *(it may need to be slightly clever so that the
mains only gets turned on when the tank is, say, only a quarter full).

An additional reason for using a pump is that our mains water pressure
is very high and tends to destroy things which then gets expensive in
lost water. *A system as above will at least limit the rate of loss
considerably.

So, in the greehouses I was thinking of running plastic around the
edges and having some sort of small bore feeds to individual plants,
pots, etc. *Can anyone suggest a practical way to connect small bore
feeds to plastic pipe? *I know there are systems sold for doing this
but my experience with them has been that they're not very robust or
long lasting.

In a greenhouse it makes a lot more sense to put large trays on the
staging, add sand and water those. Or ISTR synthetic felt mats used
for the same purpose.


NT