How to layout pool plumbing, how to repair pool valves and make pool . Another good trick is to put the plumbing under pressure, to locate the leak. . If the pool loses water only while the pump is off, we look towards the suction side. . Hayward Pumps · Pool Filters · Chlorine Generators · Thermometers · Nature 2; Pool . A typical multiport valve has 7 settings: filter, backwash, rinse, waste, closed, Cdm - New sand that you just put in your filter often has very fine sand mixed in it that . I have a hayward multiport valve brand new install everything including pool . Then I would look for suction leaks before the pump that could be sucking air . Parts Diagrams. To view these documents, you will need to download the free Acrobat Reader, which gives you instant access to PDF files. Please note: The . Valves. White Goods. Hayward is a leading manufacturer in the swimming pool . Hayward offers a line of the industry s best automation to suit any backyard . Replacement Parts. Best of all, you can download it now and have it available for offline reading later. . If you're looking for a new heat pump, browse this cross reference chart . Hayward offers a full line of multiport and slide backwash valves to support our complete . Vari-Flo® Owner's Manual Model: PSCV SERIES CHECK VALVES.