Recent content by SchralphMacchio

Yeah I use the word cycle to imply that I measure FC and CC 2-3x per day during SLAM and keep topping up until my FC depletion rate matches baseline (I temporarily change my filtration settings to run circ pump and ozone 24hrs until FC depletion rate is down to about 5 ppm per 24 hours, which is...

Look on this site. SLAM = Shock Level and Maintain. I don't do it very often, maybe once every couple of months when I screw up on maintaining minimum chlorine. Pouring directly from a 128 oz jug is not very easy, and I would still need to measure out what I'm pouring. Which is why I said I...

A number of you recommended Tip-N-Measure or Perfect Pour Flask type containers for secondary storage and dispensing of liquid chlorine for a spa. However, I had some issues with these types of containers over the last year, primarily with caps breaking or not being liquid tight, and it wasn't...

I have a Bullfrog with EOS which is reasonably poweful, I can consume about 6-7 PPM of fc if I run at 24 hour filtration. The feature I *really* wish the firmware had is the ability to say whether ozone is enabled or disabled for a given filter program. That way if I'm shocking or trying to...

Thanks. I think I have high confidence of my gallons (spec sheet specifically says it's to the fill line), and also I can have high confidence in cumulative PPM FC added by using the FAS-DPD test 30 minutes after adding Dichlor. For example, my initial Dichlor addition of 2 TBSP got me a...

I'm using Dichlor-then-bleach for a 430 gallon spa with EOS ozone generator. Over the course of a week following water change, I added about 5.5 cumulative TBSP of Dichlor. This should have gotten me to just over 20 PPM of CYA. However, using the 30 mL CYA test from TFTestKits I have the dot...

I have an R7L with EOS, using chlorine. I'm on my second unit - first unit was incorrectly built without circ pump. Running water through EOS with pump 1 on low for about 3-4 hours a day of filtration seemed to consume about 1.25 ppm of FC irrespective of use. Now that I'm on a circ pump, FC...

Thanks, yes I did a purge before initial use and am planning on doing one at each water change.

Have you ever done a 2 hour FC test with cover open midday? Measure FC at start and end of 2 hour interval with cover open and pumps off? I've been curious about indirect / refracted daylight and whether it can slowly deplete FC. Our tub is exposed to direct sun and it gets occasional use...

I've read the "further reading" on Calcium Hardness and I'm still confused about a few things when it comes to my acrylic spa. 1) Can magnesium control foaming and scale as well as calcium does? 2) If my utility water is exceptionally low Calcium (undetectable by K-2006, dealer lab test says 11...