Silicate occurs in tap water or purified water when the reverse osmosis or de ionizing unit is not f; Silicate can result in diatom bloom and can block some essential trace elements such as vanadium and; The Salifert Test kit for silicate is a very sensitive fast, accurate test, with two scales: Sufficient for 60 tests; Can ponbe used for marine, fresh and garden d waterUL>Er. roneous results might be obtained when the c