Drip system chlorine tester

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Azrael

Exodon
MFK Member
Dec 5, 2021
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So I'm running a drip water change system 1 micron pre sediment filter and this carbon filter
www.bulkreefsupply.com

BRS Universal Carbon Block Filter - 1 Micron

Why does BRS recommend this? We spent a ton of time researching and testing to find the best carbon block available while still being reasonable when it comes to price. There are other filters that work well however do not last as long. By simply just looking down the center of the carbon block...
www.bulkreefsupply.com www.bulkreefsupply.com

I have the drippers running 24/7 @ 2gph
I change out the pre sediment filter once it starts looking brown but I don't know when to change the carbon filter. They suggest once the pressure drops. I've never really seen the pressure drop and have had it in a few months. With the carbon filter it kinda sketches me out because if it stops filtering properly the chlorine could kill my tank. If the carbon filter is filtering 336g per week should I just plan on changing monthly?

Also was looking at this

Free Chlorine Colorimeter – Checker® HC HI701

Accurate. Repeatable. Chlorine testing made easy. No more subjectivity! Ideal for water quality, environmental testing, and pools & spas.
www.hannainst.com

Would that be a good investment to give you 100% assurance? Thanks you

20220828_095728.jpg
 
It's the sediment filter that you gotta change if you see the pressure dropping. It really depends how much chlorine your filter is filtering out. I run two carbon filters and change the first one every four to five months for prevention. I remove the first one then put the second one in it's place and put a new one at the end. That way the first one is always spent and the second one still good for a while. I test periodically with strips and never see chlorine at all the way I do it. 20220828_131345.jpg
 
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I run a drip system without any filter. My municipality only runs chlorine and at 2-4gph the chlorine will evaporate before it’s an issue. I’m dripping into a 55g, 60g, 130g, 240g multi-tank system, 220g and a 260g.
I wouldn’t worry about filtering your drip and save some money.
 
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fishguy1978 said:
I run a drip system without any filter. My municipality only runs chlorine and at 2-4gph the chlorine will evaporate before it’s an issue. I’m dripping into a 55g, 60g, 130g, 240g multi-tank system, 220g and a 260g.
I wouldn’t worry about filtering your drip and save some money.
Click to expand...
I almost went that way, but I told myself that if the city decided to suddenly flush the pipes and kill my fish I'd be pissed. Carbon filters are way cheaper than fish
 
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A good chlorine test is from Swim Pool supplies. Small tablets that go pink if chlorine is found. DPD is an abbreviation of diethyl-p-phenylene diamine. Very cheap, very reliable, very sensitive. Don't buy a test kit just buy the tablets as you don't care to measure what level of chlorine, you want zero chlorine.

Don't worry, carbon filters fail very slowly, not suddenly. You have several months to replace carbon so you can test once per month initially then once per 3 months. Pre filter is good to maximise your carbon and reduce clogging of drippers.

In my location, after 6 - 8 years of testing I realised my carbon filters need replacing at 3 - 4 years so now I change carbon filters on my odd numbered birthdays (every 2 years) and no longer test for chlorine. Much easier to manage and less work.

It's also easy to make your own carbon filters (housing body) and/or pack your own carbon if you want more quality control of carbon.
 
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