Brown water inside Intex filter

[Watermom]

Not a good idea to add anything that you are unsure of the ingredients. Better check the label and post the ingredients.

Wait until you get your K2006 and test the CYA before deciding if you need to add any more or not.

[Robryan29]

The granules I'm using are calcium hypochlorite. The bleach I bought is 5.25% sodium hypochlorite.

[Watermom]

I haven't seen 5.25% bleach sold for years. If that is what it is, each quart will add about 3ppm of chlorine to your pool. Once your cal-hypo is gone, I'd just stick with bleach for now until we see what your CYA reading is.

[Robryan29]

Using the Taylor-2006 kit, here's my results:

Ph 7.8-8.0
2.42 ppm of FC
.44 of combined chlorine
110 ppm total alkalinity
Maybe 30-40 ppm of CYA. Water never got cloudy enough to measure.

[Watermom]

There is no way to get readings to two decimals places with the Taylor K2006. These testing demo videos might help you.

http://pool9.net/K2006-vid/

[Robryan29]

The instructions said to multiply he number of drops used by .2

[Watermom]

How many drops did it take for the FC test? How about the CC test?

[Robryan29]

I added 11 drops for the FC test, realizing it's 2.2 (not 2.42). I forgot how many I added for the CC.

[BigDave]

You can conserve your FAS-DPD reagents by using a 10ml pool water sample instead of 25ml. Just multiply drop count by 0.5 instead of 0.2. You can also conserve DPD powder by using one dipper, if the sample turns pink, it's enough.

Are you on Staten Island? I understand sometimes the water near the end of the NYC distribution system can pick up some stuff from the pipes.

[Robryan29]

Thanks, Dave. I'm in Brooklyn. The pool water is crystal clear. Some dust settles at the bottom during the night (lots of trees overhanging and nearby). My new Unicel cartridges are coming today. Hope they make a difference with the brown water in the filter pump.