[quote=Delphinus;308606]:p
Before summer comes I'm going to bypass my outside tap lines as well. 60psi isn't enough pressure to run two impulse sprinklers (the ones that go tsh-tsh-tsh-tsh-tsh!tsh!tsh!tsh!-tsh-tsh-tsh). :neutral: I can get by with one but as soon as turn on two they just sit there and stop tsh-tsh'ing.QUOTE] sorry quote didnt work right for me.this seems more like a volume issue than a pressure issue. your a probably triing to run 2, 3/4 inch hoses off 1, 1/2 copper to the hose bib. more pressure will not help very much.

sorry to be the barrer of bad news but if you want to correct this properly you will have to run a larger pipe from your water service to the hose bib. 40 psi is more than enought to run 2 sprinklers as long as you have enough volume.