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10-29-2015, 12:27 PM
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Jr. Member
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Join Date: Oct 2012
Zone: 7a
Location: Hickory, NC
Age: 82
Posts: 27
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getting rid of algae growth on inside of greenhouse
I have developed algae on the inside of the glass of my greenhouse. Besides being ugly, it is cutting down some on the light. Any suggestions about how to clean it off and keep it off?
Thanks
Ed
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10-29-2015, 03:17 PM
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Senior Member
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Join Date: Nov 2006
Posts: 1,477
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I use bleach water to remove it. I've tried Physan at the recommended dosage and it doesn't budge it. I use a long handled squeegie type thing and scrub it down. I wet the surface with water, then apply the bleach water and then rinse it off.
The covering over the sponge is nylon because I don't want to scratch the polycarb. If you have glass, it isn't as susceptible to scratching as the polycarb.
Brooke
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10-29-2015, 03:23 PM
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Senior Member
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Join Date: May 2014
Posts: 2,393
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Quote:
Originally Posted by Brooke
I use bleach water to remove it. I've tried Physan at the recommended dosage and it doesn't budge it. I use a long handled squeegie type thing and scrub it down. I wet the surface with water, then apply the bleach water and then rinse it off.
The covering over the sponge is nylon because I don't want to scratch the polycarb. If you have glass, it isn't as susceptible to scratching as the polycarb.
Brooke
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Ahhh... be careful! Those scourers can scratch glass and even stainless steel!
Ray said that since he has been using a lower strength fetiliser, his algae problem has disappeared. |
10-29-2015, 04:28 PM
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Senior Member
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Join Date: Nov 2006
Posts: 1,477
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Sorry my fertilizer is not applied to the g/h walls. Over spray of rain water is all it gets.
The covering over the sponge is not a scourer, it is nylon net - very soft.
Brooke
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10-29-2015, 06:39 PM
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Senior Member
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Join Date: May 2005
Location: Oak Island NC
Posts: 14,854
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Fertilizer doesn't get on my greenhouse walls either, but since switching to a low-phosphorus fertilizer and reducing the concentration applied to the plants, the overall supply of algae has dropped, and I don't get growth on the glazing any longer.
No matter what you use to kill the algae on the glazing, get it and the residue off immediately, or you may end up with a white, very-difficult-to-remove "crud" left behind.
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10-30-2015, 11:13 AM
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Senior Member
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Join Date: May 2014
Posts: 2,393
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Quote:
Originally Posted by Ray
Fertilizer doesn't get on my greenhouse walls either, but since switching to a low-phosphorus fertilizer and reducing the concentration applied to the plants, the overall supply of algae has dropped, and I don't get growth on the glazing any longer.
No matter what you use to kill the algae on the glazing, get it and the residue off immediately, or you may end up with a white, very-difficult-to-remove "crud" left behind.
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Ray, I don't know, but I suspect that might be a calcium carbonate compound the alga uses to glue itself to the surface.
Did you try an acid based cleaner? |
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