HOB Overflow help

Bnutz

Active Member
View Badges
Joined
Jul 30, 2020
Messages
213
Reaction score
242
Location
Corpus Christi
Rating - 0%
0   0   0
Hello all. I'm new to reef tanks and have been putting together all equipment to get my 75g corner flow tank set up. I have an eshopps rs 75 sump, but found and purchased an eshopps rs 200 today. The 200 came with a pf 800? Overflow box. I currently have a 29g standard tank that I as a qt tank. My wife has now decided she wants the 29g in the bedroom. Could I use the pf 800 overflow box and slow the flow down to say 300 gph for the 29g tank?
 

Water Dog

2500 Club Member
View Badges
Joined
Mar 28, 2016
Messages
4,219
Reaction score
4,891
Location
Fairfield, CT
Rating - 0%
0   0   0
Yes, you will have no problens slowing the flow rate down. Remember, the flow rate is dictated by your return pump.
 
OP
OP
B

Bnutz

Active Member
View Badges
Joined
Jul 30, 2020
Messages
213
Reaction score
242
Location
Corpus Christi
Rating - 0%
0   0   0
Thank you. I was just worried that too low of flow would starve the siphon. I'll order a pump in the 500gph range an try it out
 

sfin52

So many pedestrians so little time
View Badges
Joined
Jun 19, 2016
Messages
23,409
Reaction score
99,735
Location
Usa
Rating - 0%
0   0   0
To low of flow with an hob overow may cause it to eventually loose its siphon
 
OP
OP
B

Bnutz

Active Member
View Badges
Joined
Jul 30, 2020
Messages
213
Reaction score
242
Location
Corpus Christi
Rating - 0%
0   0   0
I figured there's min flow required to maintain siphon. Just wondering if its 50% or less? Any pump recommendations around 600gph? Preferably budget related for this trial
 

Water Dog

2500 Club Member
View Badges
Joined
Mar 28, 2016
Messages
4,219
Reaction score
4,891
Location
Fairfield, CT
Rating - 0%
0   0   0
Many years ago, I ran an Amiracle HOB overflow box on my 29 gallon tank. It had very similar dimensions as well as the same 1” U-tube as your Eshopps PF800 HOB. It ran just fine with no issues with breaking siphon. I used a Mag 7 throttled back about 25% with a ball valve. What‘s your budget for the return pump that you’d like for this project?
 

Water Dog

2500 Club Member
View Badges
Joined
Mar 28, 2016
Messages
4,219
Reaction score
4,891
Location
Fairfield, CT
Rating - 0%
0   0   0
I run 2 Mighty Jets, one for a reactor, the other for my UV sterilizer. Unless you’re using it as a return for an AIO tank, I wouldn’t use it. In a sumo situation, it won’t have enough head pressure capability to push water from the sump up to your tank IMO. If you want to look at a cheap DC pump for your return, take a look at the Jebao DCP line of pumps.
 

Water Dog

2500 Club Member
View Badges
Joined
Mar 28, 2016
Messages
4,219
Reaction score
4,891
Location
Fairfield, CT
Rating - 0%
0   0   0
I’d go DCP3000 at 792 gph at 11.5’ max head height. You can always turn it down. The 2500 only has a max head height of 8’.
 
Last edited:

A worm with high fashion and practical utility: Have you ever kept feather dusters in your reef aquarium?

  • I currently have feather dusters in my tank.

    Votes: 68 37.2%
  • Not currently, but I have had feather dusters in my tank in the past.

    Votes: 62 33.9%
  • I have not had feather dusters, but I hope to in the future.

    Votes: 25 13.7%
  • I have no plans to have feather dusters in my tank.

    Votes: 28 15.3%
  • Other.

    Votes: 0 0.0%
Back
Top