On Mon, 22 Jun 2009 17:29:32 +0100, Stephen wrote:



I see that there are 13mm and 4mm pipes. Is 13mm more or less hosepipe
size?

Yes. Half an inch, more-or-less

How flexible is it to run where you want? How does it connect to a
tap? Is an adaptor supplied?

My system used a timer (13mm) and from there everything was done in 4mm,
which, I think, answers all your other questions.

It looks as though you are supposed to run a 13mm manifold and use the
4mm pipe for short lengths from the 13mm pipe to the drippers. Is that
right?

No.

Is there a limit to what length of 13mm pipe you can use?

Not within the size of most gardens!

Is there a limit to what length of 4mm pipe you can use?

Not that I'm aware of

Is there a limit to the number of drippers you can attach to a 13mm
pipe?

Depends on your water pressure, but a heck of a lot normally

Is there a limit to the number of drippers you can attach to a 4mm pipe?

See above
Or is it intended to use one dripper per 4mm pipe?

God no.


I was hoping to use 4mm pipe because I thought it would be more discrete
but I ma not sure if I can use a large length or connect more than one
dripper to it.

I did and it worked fine. Loads of troughs, hanging baskets, tubs and
three large Lupulus humulus aureus planted in the patio all being fed by
one 4mm pipe.