AquaGuard + AquaClear UV Combo

UV only works on water it can see through. The AquaGuard's three stages take the water down to 1 micron, clear enough for the lamp to reach every organism in it. Filter, then sterilise: the unit and the steriliser are sized to each other at 2 720 litres an hour.

Less than the two bought separately (the price above shows the difference), one delivery instead of two, and the part every other shop admits is "not included": the adaptors between the unit's 1 inch ports and the steriliser's 3/4 inch ports, with the thread tape to fit them.

The AquaGuard at the point of entry, the UV after it, horizontal below the frame or vertical beside it, with a metre clear at the lamp end to withdraw the sleeve. A plug point within 1.5 m for the ballast, through a surge protector, in a dry spot. A bypass valve around the pair means a cartridge or lamp change does not mean a dry house.

Bacteria are what UV solves. Iron, manganese, hardness and salts are chemistry, and they need a media vessel ahead of this pair. A SANS 241 laboratory test tells you which you have before you spend; ask us and we arrange it.