Question about Pentair Pac-Fab 2" DE Filter Multiport Valve 261152

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I replaced a spider gasket on my PAC FAB 2# Multiport valve and when I put it back together the sequence is off. Filter mark is actually the waste port and waste is actually the Filter port.... how do you know if you are putting it back together correctly where the positions are accurate?

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  • 372 Answers

There should be a screw hole in the valve lid that has a flat edge on one side (outside edge). The valve body has a matching flat edge that aligns with it.
In the event the handle was removed from the lid and diverter to replace the diverter o-rings it is not uncommon for people to put the handle back on the diverter 180 degrees of where it should be. The pointer on the handle should be aligned above the open port of the diverter. This is true of all multiport valves except the Hayward four way valve.

Posted on Dec 22, 2012

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Posted on Jan 02, 2017

john224
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SOURCE: I'm hearing air like sounds

Air only gets into the lines of your equipment if it enters somewhere on the suction side of the system. That means from the pump housing and strainer BACK to the pool on the inlets. Once the water passes from the impeller out the discharge of the pump it is under pressure and any leaks will result in water escaping from the line.

While your filter may or may not need work air is likely the result of failing gaskets or a seal in the pump. Replace the strainer lid ring, the pump body ring and the mechanical seal first. If there is still air look at the valve or valves in front of the pump for controlling inlet water flow...check for leaking stems or failing pipe joints.

John

Posted on Jul 21, 2011

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