Hi there, Char -- we first bought those black soaker hoses (reconstituted auto tires, I believe) probably 25 years ago, because we've had the Netafim drip system in place for at least 15 years. There were two big problems with the black hoses: the water pressure at the beginning of each hose was much, much greater than at the end of the hoses, so things did not get watered evenly. In one case we made a continuous loop out of the hoses, so water could come in from each end at the same time. We did this by making a short hose with two female ends and using a Y connector. I'm a bit fuzzy after all this time about the actual design, but if you needed to know, I could ask Jimmie. At any rate, this made the water pressure even throughout the hose, and we ran the loop around nine big hemlocks... The other problem, of course, was the black hose's temdency to burst under our water pressure of 60 ppi. We finally found some little white plastic inserts (something like washers) to use whenever we hooked up one of those hoses, and this cut back the water pressure, so the hoses stopped bursting. We put a few of them back into service last summer, just because they were here and available, but we did not put in the inserts for some reason, and that would be why we're having trouble. What is the proportion in your vinegar spray? Have you talked about it here on the BB..? I am locked out of 1,000 messages by a glitch in my server's program, and so I might have missed it. You say that you are using it to kill weeds? That's exciting! My daughter in Chicago is making a jalapeno spray to deter the varmints which are still destroying everything she puts in to her garden. I sure hope it works! Penny, NY . ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.