Movin' on up

Delphinus · #1 07-29-2006, 05:44 AM

Albert has some great advice. The one point I might challenge him on is his recommendation for 1.5" holes for the overflows. Standard schedule-40 1" bulkheads require a 1.75" hole, IIRC. I'm pretty sure I've never seen a 1" bulkhead that would fit in a 1.5" hole. Schedule-80 bulkheads exist too and they require an even bigger hole. Unless he's thinking of smaller bulkheads?

I have a 1.75" drill bit for glass that you could borrow if you wanted. Drilling glass isn't too bad, I've done it many many times. I could help you out if you wanted.

RobbAdams · #2 07-29-2006, 06:08 AM

Just to be sure I am understanding this, if I use the CPR overflow rated at 1600 GPH I would want a return pump rated at less than 1600 gph at 4 ft of head right?

Robb

albert_dao · #3 07-29-2006, 06:33 AM

Quote:

Originally Posted by RobbAdams

Just to be sure I am understanding this, if I use the CPR overflow rated at 1600 GPH I would want a return pump rated at less than 1600 gph at 4 ft of head right?

Robb

This is correct.

RobbAdams · #4 07-30-2006, 03:28 PM

OK next question,

I have probably 35-40 pounds of LR in my current setup, along with 2 Clowns, a Cleaner shrimp, and a starfish. Corals consist of some warty mushrooms, small orange plate coral, some xenia, some candycane, GSP a small hammer, and a finger leather.

Am I going to have a really hard time if I just stuff all this into my 90 and start it up? I was planning to buy say 15-20 pounds of LR a week until I have enough rock.

Would I be better of to not star putting my stuff in there until I have enough LR (Say 100 lbs)

Robb

albert_dao · #5 07-30-2006, 04:46 PM

You'd be better off taking things slower. It can be done the other way, but why risk it?

albert_dao · #6 07-29-2006, 06:29 AM

Quote:

Originally Posted by Delphinus

Albert has some great advice. The one point I might challenge him on is his recommendation for 1.5" holes for the overflows. Standard schedule-40 1" bulkheads require a 1.75" hole, IIRC. I'm pretty sure I've never seen a 1" bulkhead that would fit in a 1.5" hole. Schedule-80 bulkheads exist too and they require an even bigger hole. Unless he's thinking of smaller bulkheads?

I have a 1.75" drill bit for glass that you could borrow if you wanted. Drilling glass isn't too bad, I've done it many many times. I could help you out if you wanted.

I meant 1.5" ID on installed bulkheads. I totally forgot about the bulkhead sizing. The holes should be 2" to accept 1.5" standard ABS bulkheads (IMO, PVC bulkheads are excessive since the sytem is not under pressure). But yeah,thanks for the spot Tony.