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Cleaning out reservoir

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(@juffle)
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Hi all

I've just started using a homemade auto feeder using a 40l flexitank reservoir and 3D printed hydro halos. Nutes are GH Triple with calmag. The nute solution was sitting for about 10 days and I didn't use it all as the girls are still seedlings. The reservoir got a bit smelly and brown slime was in the bottom when I cleaned and changed it out. The room is dark and the lid is zipped up.

How often do you clean out your res and would you just recommend water or should I clean it with Milton or Bleach? From what I've read some people don't seem to clean it during a grow and simply refill it. Moving forward the tank shouldn't sit for so long between refills.

Thanks!

Β 

Β 

 
Posted : May 24, 2022 10:28 am
SuperC, Gelert, WoodI2 and 18 people reacted
Macky
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@juffle Back in my hydro days I would clean the res fully every 7-10 days. I would constantly top it up with fresh feed though, every day or 2, and that would have some H2O2 in it to help keep the res sterile and clean too.Β 

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Posted : May 24, 2022 10:48 am
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(@juffle)
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@macky is that 35% hydrogen peroxide? Just looking at where to buy it without raising questions

 
Posted : May 24, 2022 11:20 am
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@juffle you can buy it from the grow shop usually mate..... its beena long time since i did hydro, but i think i used to get a vitalink bottle of it. Made specifically for hydroΒ 

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Posted : May 24, 2022 11:33 am
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(@juffle)
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Legend, I'll give it a try. Thanks mate!

 
Posted : May 24, 2022 11:35 am
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artmann
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Did you use an air stone? Got to keep it aerated.

Β 

Temperature is important too. I run hydro. I made the mistake of letting the temperature of my reservoir get in the upper 70s once. It fermented, stank and turned into goo.Β 

Β 

Keeping the temp low helps a lot. I have a chiller now but used to put my reservoir on the concrete floor in warm weather. I used frozen bottles too.

Β 

Just a thought.

 
Posted : May 24, 2022 1:28 pm
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@artmann yeah I've got an air stone set to come on for 15 mins every hour. Is that enough? The room is normally around 18-20 degrees so mid to high 60s in your part of the world.

 
Posted : May 24, 2022 8:25 pm
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I keep my air stone running all the time. I don't think 15 minutes will keep it circulating/aerating enough.

Β 

Highs in the 60s are great.

 
Posted : May 24, 2022 8:39 pm
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Hey @Juffle, so are you using this to just mix in or is this a top off re? Either way if it holds mixed nutrients then it has to be keep dark and bubbled. You treat it just like any other mixed nutz solution and it has the same life expectance so you have to drain and rinse with each water change. It's just house keeping, you don't want to eat off a dirty plate. lolΒ  I mix in a large container and if there leftover then I put it in a smaller bucket for top off, but if your automated then air and movement is key I would think. Good luck man.

 
Posted : May 24, 2022 9:00 pm
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Finally got some H2O2 delivered, how much do I put in? I've got a 40l res.

 
Posted : June 25, 2022 10:52 pm
Stootie, WoodI2, SuperC and 6 people reacted


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