Hi, Martha B, our house water pressure reads 60 lbs. That's high enough to cause Old Faithfuls throughout the yard within the black soaker hose! We had to go get the little white disks to insert like washers, to cut down the pressure. And yes, even with the high pressure, tying an end tightly with wire will stop the flow of water successfully. We did find that mending a bad hose in the middle with one of the conventional hose-mending connections seriously cut down on the available water at the far end, because they fill part of the space inside the hose, and obstruct the flow. You can test this by laying the hose down in your driveway (where you can see it), connecting one end, and watch the difference in the water pattern. Penny, NY ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]