The Pentair Clean and Clear Plus ranges from 240 square feet to 520 square feet. Opening the Tank on a Pentair Clean and Clear Plus Pool Filter Now that the pump and filter is de-energized, we are free to open up the filter safely. ONLY do this if you are positive the tank is NOT under any pressure. If there is no movement one way or the other, you may need to open the drain plug at the bottom of the tank to drain out the water. If water comes out instead, make sure all pumps are off, and if there are any valves to isolate the pool from the equipment they may need to be closed. Air should be pulled into the tank thus draining water out of the tank. The next step is to dissipate the energy that is built up inside the tank by opening up the High Flow manual air relief valve at the top of the tank by turning it ¼ turn counter-clockwise.I always anticipate the worst-case scenario that something will be broken, and I have to run to the store, so I turn everything off at the breakers in-case the timers decide to pop on unexpectedly. Turn off all pumps and ensure they will remain turned off for the duration. What Are the Steps to Safely Open up the Filter Cartridge Tank?īefore servicing any piece of equipment, always ensure energized equipment, or potentially energized equipment is de-energized. It’s important to take a mental picture, or a literal picture, of the positioning of each of the movable parts prior to opening everything up, because if one thing is wrong dangerous things can take place. Attached to the top of the tank lid is a pressure gauge assembly with a combined pressure relief valve. Moving up from there you will have the tank lid or top half of the canister. Holding the two halves together is a metal clamp band with one barrel nut tension spring assembly, early models may have two barrel nut assemblies. Moving up from there are the inlet and outlet bulkhead fittings that have the plumbing running through them with union style connections, along with each O-ring. Near the bottom of the tank (under the plumbing for post 1998 models) there is a drain plug along with its O-ring. A lot of folks like to go from top to bottom, but in this case I want to go from the bottom up.Įach of these units has a tank base which consists of the bottom tank of the filter canister. So let’s first point out all the parts as you approach the filter tank. Inspecting a Pentair Clean and Clear Plus Filter Before Tear Down and Cleaningīefore I go tearing into any filter, I like to take stock of what I’m working with. Our focus in this article is going to be the four-way models, which in Pentair’s case is the Clean and Clear Plus, 240, 320, 420, 500, and 520 square foot models.ĭon’t feel like reading about it? Check out my YouTube post on tearing down a Waterway Cartridge Filter. Then there is the single cartridge style, ranging from as small as 50 square foot up to 250 square foot models. The four-way style which ranges in size from 300 square foot up to 500 square foot. Primarily, there are two types of cartridge filter styles in service. So regardless of your model, this article will help you keep your filter running smoothly. Over the course of my career I have cleaned thousands cartridge pool filters, and it is true that all cartridge filters are pretty much the same technology. Especially if you’ve acquired a new filter or even a new pool in the past 10 years or so, Pentair is often the go-to brand for pool builders and repair services alike. It’s quite likely that you have one of these filter models filtering the water in your pool. The Pentair Clean and Clear Plus series is Pentair’s flagship line of cartridge swimming pool filters.
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