The Pooltester blocks are manufactured in durable clear polyacrylate and have long-lasting printed colour standards. Pooltester kits (except SP 315) are supplied in a pocket-sized bag which may be used either free-standing or wall mounted. This range of kits is further supplemented by tests based on the Palintest tablet count method, and a test for cyanuric acid stabiliser level using a turbidity method. Palintest’s Pooltest test kits use safe DPD and phenol red tablets for a quick and simple check on pool or spa chemistry. The new Pooltest kits couldn’t be simpler to use: simply dip the test block in the water, add the tablets then read the result from the colour scale.