Carbon filter clogging from tap water

  • Thread starter Zmc2021
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Zmc2021

Zmc2021

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My 10” carbon filter pre filter plugs solid from my humidifier after about 7-10 days

4x4 tent
10” exhaust fan and filter turned way down
6” intake fan
Humidifier sprays about 6-8L a day

10 days and the pre filter is so clogged that barely any air discharges.

why? What’s the fix for this? How do you run a humidifier and an exhaust fan together?
 
EMC2

EMC2

60
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Whats your humidity level at? Its possible your tent may be way too humid.

Also, how far away is your humidifier from your carbon filter? Try to keep them as far away from each other as possible
 
Aqua Man

Aqua Man

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638
My 10” carbon filter pre filter plugs solid from my humidifier after about 7-10 days

4x4 tent
10” exhaust fan and filter turned way down
6” intake fan
Humidifier sprays about 6-8L a day

10 days and the pre filter is so clogged that barely any air discharges.

why? What’s the fix for this? How do you run a humidifier and an exhaust fan together?
Only use distilled or RO water in a humidifier. Also I would move the humidifier outside the tent and humidity the room the tent is in
 
Madmax

Madmax

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313
sounds like your humidifier % is over 65% clogging the filter .

did i read that right..how bigs your room mine takes bout 3 days to use bout 3 litres keeping veg room at 65-70%..
 
Zmc2021

Zmc2021

55
18
It’s a 4x4 tent. I have 4 humidity meters in there at diff spots. The two most accurate ones read around 55% at the most. Maybe a tad higher at canopy level.

humidity meter holds 1 gallon and that lasts about 8 hours. Most of it going out the exhaust filter. yes they are far away as possible in opposite corners, maybe RO is the way to go. That’s tricky

the lung room is a garage and it’s usually 25-40% along with the house.
 
PpmOver9000

PpmOver9000

317
63
second the RO or dstilled water. I used tap and my room looked like a life sized snow globe and caused some burns eventually. No bueeno
 
Aqua Man

Aqua Man

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638
Can you explain your thinking here? Trying to control a larger space to limit the deadband?
A humidifier in the tent is much more likely to to have direct contact with the plants before being able to evenly disperse and that greatlyincreases chances for fungal and bacterial issues. It also will cause very big fluctuations in humidity throughout the tent... just move your humidity sensor around to see this (much depends on the airflow) but say a foot or 2 over it will be very humid and where the passive intakes are will be very dry. It's also likely that the humid air is being sucked out before it even reaches the plants. As exhaust is at the top of the tent and the passive intake at the bottom drawing dry air in. Remember plants transpire from the bottom of the leaves.

So IMO it is by far better practice to control the humidity of the air that will be drawn into the tent. As this will ensure a consistent humidity through the tent and the bottom side of the leaves.
 
Moe.Red

Moe.Red

5,044
313
A humidifier in the tent is much more likely to to have direct contact with the plants before being able to evenly disperse and that greatlyincreases chances for fungal and bacterial issues. It also will cause very big fluctuations in humidity throughout the tent... just move your humidity sensor around to see this (much depends on the airflow) but say a foot or 2 over it will be very humid and where the passive intakes are will be very dry. It's also likely that the humid air is being sucked out before it even reaches the plants. As exhaust is at the top of the tent and the passive intake at the bottom drawing dry air in. Remember plants transpire from the bottom of the leaves.

So IMO it is by far better practice to control the humidity of the air that will be drawn into the tent. As this will ensure a consistent humidity through the tent and the bottom side of the leaves.

Yes, I see your point.

What about a sealed room, say with CO2? Is there a better way to humidify than in the tent? It's not an issue once the plants get big, the humidifier never turns on due to respiration. But during transition to flower, what is your recommendation?

Also, do you follow VPD or just an RH setpoint?

Sorry if I am hijacking here.
 
Aqua Man

Aqua Man

26,480
638
Yes, I see your point.

What about a sealed room, say with CO2? Is there a better way to humidify than in the tent? It's not an issue once the plants get big, the humidifier never turns on due to respiration. But during transition to flower, what is your recommendation?

Also, do you follow VPD or just an RH setpoint?

Sorry if I am hijacking here.
The best way I found is I put it behind my fan a ways (which is far from the plants)... its really going to depend on the setup.

I do use VPD but not in the sense of those charts... I go by kpa but because I'm running co2 I have to adjust mine to run a higher KPA (lower humidity to make up for the more efficient photosynthesis and lower transpiration rates) VPD basically controls stomatal opening and transpiration. Thise charts are very dangerous to go by and I suggest you calculate your own VPD values and go by the KPA recommended for stage of growth.

I did a thread on it here if you feel like reading. Also can link you and app that makes calculations easy.

 
Zmc2021

Zmc2021

55
18
Interested. My tent has a ton of white calcium buildup. As well as my circulating fan in the tent.

I don’t have RO. Looks like I need to ditch the humidifier as it’s useless anyways it seems.
 
Aqua Man

Aqua Man

26,480
638
Interested. My tent has a ton of white calcium buildup. As well as my circulating fan in the tent.

I don’t have RO. Looks like I need to ditch the humidifier as it’s useless anyways it seems.
Pretty cheap here. Also handy to have if ya grow and need to cut tap water or want to start with next to 0 ppm.

 
EMC2

EMC2

60
18
Interested. My tent has a ton of white calcium buildup. As well as my circulating fan in the tent.

I don’t have RO. Looks like I need to ditch the humidifier as it’s useless anyways it seems.

I had the same issue a year back. Thought it was PM at first until I looked closely. Its typically calcium build up from non-RO water. Its not going to effect your crop other than the look. It WILL fuck up your equipment though so def get an RO going to your humidifier.
 
Zmc2021

Zmc2021

55
18
Just renting this place so can’t install that. I wish. Gonna have to turn off the humidifier I guess.
 
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