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Re: HMA filters

Subject: Re: HMA filters
by cathie on 7/8/2013 22:39:38

I have a chloramine filter, from experience now I know that it has never been exhausted before the 6-monthly change so I only test randomly now, not every time as I used to; I use DPD 4 tablets for this ?5 for 100 on eBay e.g these