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Freeze cracks? Split filters? Leaky valves or fittings? We have all the replacement parts you'll need to get everything fixed right!

Please note that due to the east coast hurricanes, west coast wild fires and southern freezes, you can expect severe nationwide shortages of these items in the coming weeks. Order as early as possible to avoid the rush.

This Week's Most Popular Article

The Complete Guide To Pool And Spa Plumbing Repairs

To understand the basic plumbing system of a pool or spa, you must follow the path of the water. The water from the pool or spa, not both at the same time, enters the equipment system through a main drain on the floor, through a surface skimmer, or through a combination of both main drain and skimmer.

The water travels to a three-port valve (if there is no spa, there will be no such valve) and into the pump, which is driven by the attached motor. From the pump, the water travels through a filter, then to the heater, and back through three-port valves to the pool or spa return lines.

The three-port valve is often used when a pool and spa share one filter, heater and pump. In this situation, the water is alternately diverted to the pool or spa. Spas use the three-port valve to divert air bubbles and jet water to one side of the spa or the other, or the combination of both. The design of three-port valves is such that water flow from one direction and divides it into a choice of two other directions or the other way round.

To understand valves more clearly, picture a Y, for example, with the water coming up the stem, then a diverter allows a choice between one of two directions, or a combination thereof. Conversely, the water flow might be coming from the top of the Y, from two different sources, and the diverter decides which source will continue down the stem or mixes some...

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