Check Valves

Originally Posted by jpdutton

Why where does your return enter the tank?

I am not quite get what you mean ? - But I think you mean where does the hose enter to tank for return line. my tank is custom design. I sketched it myself with return right on the backwall 2/3 uptop, not up to the air and back in water like many other tank. Thanks

Originally Posted by victornguyen

i got 1.5 true unoins if you want them got 2 extras. I got two on my tank. cant see them failing for many years. Its like saying "dont buy that power head as it will eventually fail...."

You mean 1.5 inch ? - My pipe is only 1/2 inch. But thanks for the helps.
I also agree with you about equipments' failure. And even if it might fail due to dirty clogging, we can prevent by cleaning it thouogh.

[jpdutton]

Originally Posted by brandy

I am not quite get what you mean ? - But I think you mean where does the hose enter to tank for return line. my tank is custom design. I sketched it myself with return right on the backwall 2/3 uptop, not up to the air and back in water like many other tank. Thanks

I had a tank with a similar design and what I did was to use Loc Line from the return bulkhead and bent the loc line in a shape that brought the spout closer to the water surface, so as soon as the water dropped slightly the spout of the loc line would get air to break the siphon.


This will be a much better option for you, if you have a pump failure 1/3 of your tank would siphon out, which would leave 2/3s baking under your lights.

[quote=jpdutton;340890] ... to use Loc Line from the return bulkhead and bent the loc line in a shape that brought the spout closer to the water surface, so as soon as the water dropped slightly the spout of the loc line would get air to break the siphon.QUOTE]

Nice thought.
As you are the third person who suggested me doing that, I think I'll make some modification to my system soon. Thanks
I agree with the thought: Less worries is more enjoyable !

Thanks,