- HI701-25 Free Chlorine Reagents - Marine & Fresh Water
Reagent refills for Hanna Free Chlorine Checker (HI701).
- Enough reagents for 25 tests
Use this to test chlorine breakthrough on my RO carbon blocks By sghera on 9/24/2018sghera would recommend this product to a friendI'm very happy with the precision of results as I wish to read very low numbers (effluent from carbon blocks going to RO unit). This Hanna assay helps me determine when it is time to change out the carbon blocks. With this kit, I have been using the same 3 BRS Universal blocks for over 2 years and the assay says that the blocks are good. The RO membrane continues to produce with 99.7% rejection rate; which gives me confidence that the low free chlorine that the Hanna checker tells me might be right - - or I have a super membrane.
This test is very fast, less than a minute). It is really calibrate, add the packet of reagent, mix for 20 seconds and then read.
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