Need Help With Closed Loop Design

[mwm6]

All,

I'm going to use a closed loop for the first time on my new 180. I need to get locations of holes to mfr early this week.

I need help as this is new to me and I want to do it right the first time. Here is a pic of what I'm thinking. Each 24" end will have two 3/4" bulkheads for return from the closed loop pump and one 1" bulkead for the supply to the pump. I'm using the 24" ends as this is my only option because of the wall the tank is going into - not enough room to have in the back 72" long section.

I'm not sure which pump to use....one of the sequence pumps most likely - any recommendations?. If I take the two one inch and TEE them into a 1-1/2" or 2" line (depending on which pump I get will determine the inlet size), and the four 3/4" and manifold them into a 1-1/2" line from the pump output, will this work OK.

Need some help!!!!!!

Thanks!!!!!

 

[mwm6]

Now i'm thinking I can't do a closed loop..... The front of tank will only be viewable. As I said, not enough room in back as wall will only be a couple of inches away from back. I'll only have around 5" on the sides of the tank to the inside of wall. So, if I have a bulkhead leak, I'm screwed, unless I start removing drywall.....

Geez, now I'm really confused. can someone give me an idea of the minimum offset from tank to edge of PVC elbow for a 1" pipe (thinking of the closed loop piping on outside of tank.

 

[roni]

is that 5" on each side or 5" total? Accessibility will be a definite concern...another possibility, although somewhat expensive, is a pair of tunze's on a multicontroller...depending on what you keep, you can use that plus your return. another possibility is to bottom drill your closed loops

 

[mwm6]

Roni....around 5" on each side. Yeah, I think I'm going to ditch my closed loops entering the side and will opt for the Tunze systems.

Really wanted a closed loop, but the setup won't permit accessibility to the bulkheads...so better off not.

Anyone use the Tunze wavebox??????

 

[roni]

i don't personally have a wavebox, there are others on here who have...the key is to have an overflow able to deal with the fluctuations and a long enough tank.

You could also look at some of the new vortech pumps coming out.

last, bottom drilling isn't a bad idea; it may work for your closed loop, especially if you have an acrylic tank.