This guide describes the steps required to install a Pentair Triton 2 Side Valve Sand Filter. The flow of water to and from a sand filter is generally controlled by a Multiport Valve (MPV). The valve can be mounted on the top of the filter tank or on the side of the tank. This guide describes the Iinstallation of a side mounted version. Although this guide is specific to a Pentair Triton 2 Side Valve Sand Filter, many of the steps discussed can be applied, in general, to other side mounted filters.
BUY SAND - Before starting installation, you will need to purchase sand. Use only high rate No. 20 Silica Sand. An example is pictured at left. Check the manufacturer to determine the amount required. This unit (Pentair Triton 2 TR-60) uses seven 50 lb bags of sand - 350 lbs total. You can also purchase our superior to sand Click here for our Sand Alternative.
PROVIDE STABLE FOUNDATION - The pool filter should be installed on a permanent and level concrete slab not more than 6 feet above the pool water level. Position the pool sand filter so that the piping connections, multiport valve and drain are convenient and accessible for operation and maintenance.
POSITION FILTER - When installing the pool sand filter, you will connect it right after the pump. Pool water will come in through the pool pump, be filtered through the sand filter and returned back to the pool. If you have a chlorinator, it would be installed between the filter and the return pipe. If you have a pool heater, the pool filter will release water to the heater before going to the chlorinator. The Filter Tank rests on a tank base called a Tank Foot. Place the Tank Foot on the Filter slab and then place the Filter tank on the Filter Foot.
CONNECT PUMP TO MPV - Using PVC piping and fittings, connect the "PUMP" port of the MPV to the discharge port on the top of the pump. For instructions on gluing fixture together see our guide on "How To Glue Pool Fixtures Together'.
TAPE BRASS ADAPTER - Put 2-3 layers of plumber's Teflon tape on the threads of the Brass Adapter screwed on top of the Cover Lid. Wrap the tape in a clockwise direction so it will stay on as you screw the Assembly on. If the Brass Adapter is not attached to the Cover Lid, attach it with a nut and washer on the underside of the Cover Lid. Also an O-ring needs to be is inserted between the Adapter and the top of the Cover Lid to seal the hole in the Cover Lid.
ATTACH PRESSURE GAUGE - Put 2-3 layers of plumber's Teflon tape on the threads of the new Pressure Gauge. Wrap the tape in a clockwise direction so it will stay on as you screw the Gauge on. Then thread the Pressure Gauge into the Air Relief Valve in a clockwise direction. Use an open end wrench to tighten the last 1/2 turn. Do not over tighten.
VIEW BAFFLE AND AIR RELIEF TUBE - With the Cover Lid off the top of the Filter, you can see the Baffle and the Air Relief Tube. The Baffle distributes the water from the pump over the top surface of the sand. The Air Relief Tube connects to the bottom of the tank and relieves any air that is caught in the top of the tank. Remove shipping straps used to support the Baffle during shipping.
CHECK LATERALS - Look at and feel each of the laterals to see if any are damaged. If necessary, remove the questionable laterals and replace them. See our guide on "How to replace Laterals in a Pentair Triton 2 Side Valve Sand Filter".
ATTACH COVER LID - Screw the Cover Lid into the top of the filter tank using the large hex wrench. Make sure the threads line up. If it becomes hard to turn, back the Cover Lid off and rethread it. Take care that you do not cross-thread the Cover Lid. Failure to install the Cover Lid correctly can cause the Lid to blow off and could cause severe bodily injury and property damage.