Dart for Closed Loop... 1 or 2 intakes?
- Thread starter mille239
- Start date
integlikewhoa
New member
I personally went with 2 2" intakes due to that reason. Also longer time between cleaning the intakes. And if a piece of nori did get sucked into one (which happens alot along with other things) it still has the other to get water from. I think it was more of a saftey feture for me. Heres some pics. you can see the larger and lower mounted intakes on the back wall of the tank. they T into each other. It also helps with moveing water threw the rocks on both sides.
integlikewhoa
New member
Oh and don't under estimate the force of both the suction and the pressure out of the DART its a monster. I love it and the pic looks like over kill but when you see the water movement in the tank I wouldn't have it any other way. Theres also a oceansmotions on the dart to move things around. Only 4 of the 10 outlets are being used at any one time. ( theres 12 but 2 are capped off on the top of the tank)
mille239
Premium Member
Awesome plumbing! I'm going to be running an OM 4 way as well (also a 120 might I add) I ordered the OM with 1" outputs, and plan to plumb them to each of the upper 4 corners of the tank (with the flex 1" nozzles that OM sells as well) this won't be too much current will it?
integlikewhoa
New member
I think it will. I have the 2inch in and 1.5inch output oceansmotions.
So I have the 2inch into the dart then I have the 1.2 out of the dart straight into a 2inch into the OM. Then out of the OM in 1.5" reduced to 1.25" around half way up to the tank. The I have 1.25" reduced right at the bulkheads to 1" (which is the size of bulkheads). ON the 4 corners inside the tank I have the 1 enlarged to 1.25 90 degree. So the final output on the top 4 corner outputs in 1.25 and it creates a lot of flow stirring things up on the other side of the tank. 1 inch might be small. To strong in 1 area.
So I have 4 different drums for the OM. I tried them all. I went with the one that has 2 openings on each end. So 2 of the 4 out of the OM is open at any one time. From there they are each split to 2 outputs in the tank. I have 4 on the back wall of the tank and they are reduced to 3/4 and had 3/4 lockline on them to spray behind the rock work. Lock line don't come in 1 inch. ( I found out after I put the 1 inch bulkheads in. Those 4 on the back wall are divided into 2 sections. each section has a ball valve to limit that section. Both of the backs are turned down to limit full force behind the rock work. I turn them up to the point sand is moving. The top has 4 also and 2 on each side and each side on its own section. Those sections each have a ball valve and are now run wide opened. With 1inch outputs and different drum it had to be lowered.
So I have the 2inch into the dart then I have the 1.2 out of the dart straight into a 2inch into the OM. Then out of the OM in 1.5" reduced to 1.25" around half way up to the tank. The I have 1.25" reduced right at the bulkheads to 1" (which is the size of bulkheads). ON the 4 corners inside the tank I have the 1 enlarged to 1.25 90 degree. So the final output on the top 4 corner outputs in 1.25 and it creates a lot of flow stirring things up on the other side of the tank. 1 inch might be small. To strong in 1 area.
So I have 4 different drums for the OM. I tried them all. I went with the one that has 2 openings on each end. So 2 of the 4 out of the OM is open at any one time. From there they are each split to 2 outputs in the tank. I have 4 on the back wall of the tank and they are reduced to 3/4 and had 3/4 lockline on them to spray behind the rock work. Lock line don't come in 1 inch. ( I found out after I put the 1 inch bulkheads in. Those 4 on the back wall are divided into 2 sections. each section has a ball valve to limit that section. Both of the backs are turned down to limit full force behind the rock work. I turn them up to the point sand is moving. The top has 4 also and 2 on each side and each side on its own section. Those sections each have a ball valve and are now run wide opened. With 1inch outputs and different drum it had to be lowered.
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