Dr. Rev. Chuck, M.D. P.A.

System I'll be trying this year (3 rows) will use 25 foot lengths of
black
sponge soaker hose branched off a garden hose manifold, each junction
made
with a cheap wye-valve. If one branch lacks pressure, it can
(hopefully) be
brought up by reducing flow to the other branches.

Shouldn't be a problem. If you look at the head end of the soaker hose
you'll likely notice a small piece of plastic with a small hole in it to
regulate the water pressure in the hose. If you don't have enough water
pressure to power 3 of these, you'd know it!

If you hook two of these hoses in series, it may be a good idea to
remove that pressure regulator from the top of the second hose. But if
you pick-up your hoses, and put them away for the winter, make sure you
remember which hose that is.

--
Warren H.

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Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.