ADVICE FOR USE.
• Before carrying out the test with phenol it is necessary to do the test with the OTO.
Phenol, in fact, does not work if the chlorine / bromine concentration is very high and will give incorrect results.
It is also important to rinse the tubes with pool water before use.
• IDEAL FOR daily water analysis in all types of residential pools and spas.
CTX analysis cases are an economical, fast means it is easy to check that the chlorine / bromine concentration and pH are correct.
Do not hesitate to contact us for more information, we are here to serve you best.
Therefore we do not accept returns after the order.