Support for OHF (Advice needed)
Hi guys;
I have a 6x2x2 tank with 3 layers OHF. I had plugged up the OHF holes so that it holds more water. However after 3 yrs, the silicon for the center bracing gave way and the whole OHF dropped into the tank. I'm thinking of getting a new tank to replace. Any suggestions on how I should do up the next tank to support the OHF so that I do not have same issue again. Advice form bros here will be greatly appreciated. |
3 layers of ohf (15 trays?) is actually not alot.
My last tank center bracing came down after 8 years. Brand new tank or second hand? The next tank you need to tell the tank maker your requirements and bad experience. |
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But maybe could be because I plug up the holes so there is the weight of the water also. U have any additional stuff to support your OHF? |
6 ft is long though have the center support. To play safe what I do is let the ohf sit on two long metal rod. I am using curtain railings.
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I'm using the L shape bar bought from hardware shop.
In your case, probably need a thicker one. http://2.imimg.com/data2/LV/YR/MY-35...es-250x250.jpg Using the bars would actually add weight to your bracing so I would suggest unclog the holes. |
OHF filled with water is much heavier than a trickling OHF.
addition metal bracing would be good to support the extra weight. BTW, the OHF was designed for trickling to enhance treatment efficiency. |
For me I always find that OHF in trickling mode, a large part of the filter media not in constant contact with water.
Like not as effective as OHF filled with water. What do Bros here think? |
then you can consider using a sump or canister filter.
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One thing forget to mention, those support you intend to get ensure they will not rust, material like Aluminium, copper and stainless steel. As full exposure to water, and not good if the rust get onto the water. |
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I am using alu rack but the rack is not resting on bracing nor the tank and my media are soak as well. |
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