In most situations your current filtration system has adequate pressure to supply water to the solar collector, normally up to 8m high. Your water flow pressure is very dependable on the power of the filtration pump, plumbing configuration etc.
If you are unsure about the necessity for a booster pump, try using your existing filtration first!
In the event that there is not enough water pressure you will need to invest in a booster pump and sun sensor (optional). The booster pump will require a water supply utilising the main drain suction line.
If a Booster Pump is to be installed on your solar system it is worth investing in a sun sensor that will enable you to gain the optimum heat energy available from the sun.
A sun sensor is an electronic thermostat that will operate the Booster Pump when solar heat is available. In the event that there is no solar heat e.g. after dusk the control sensor will turn off the Booster Pump.