Herbie on HOB CPR CS202 success!

[KenRexford]

Probably boring to many, but I feel like hot $#!+ today! I upgraded my 125 from the 15-yr-old CPR CS-102 overflow with 15-yr-old flex tubing to the sump. I now have a CPR CS-202 (dual pipes) DIY'ed into a herbie overflow with Sched. 80 pvc to the sump. Instead of incessant gurgling despite all good attempts with stupid hard tubes not doing much, I can now barely hear anything.

As a related aside, shout out to Marine Depot for sending quickly the replacement overflow box when the first came broken. After a picture email, they jumped on it and even let me keep the broken one for parts (assuming ups doesn't want it).

The third was a charm. The first 2 broke in shipment. The second was from Marine Depot. The first was from another company on Amazon and a pain. Had to mail back and wait for them to receive for a refund. $5 savings not worth that headache.

FWIW, I skipped the unions because the entire line attaches at the bulkheads of the hob and seems easy to remove if needed. Not sure why this is, because I never owned a built in overflow tank, but the hob method for all of its faults has at least that one advantage. If I do up the return line, I could use them.

 

[Bigtrout]

I did a herbie with an eshoppes pf-1200 with the double bulkheads and it too works very well so far! Very quiet and stays in 'tune' with just the smallest trickle going down the emergency drain.

 

[KenRexford]

I find it a little disconcerting. After 15 years of gurgling and splashing, the dead silence is worrisome. Add to that the fact that the water makes no splash in the sump any longer and I freak out thinking the pump failed until I see the reassuring trickle in the one baffle area. LOL

I also am fimding that the filter sock removal and replacement is no big deal. The socks seem to work better too.

 

[Bigtrout]

Ive tested mine extensively...and so has mother nature with a few power outages...always starts right back up and goes into a full quiet siphon within 15-20 seconds.
My sump replaced 3 canister filters on a 75 gallon FW planted tank. I appreciate the dead silence. The canisters were quiet but always had a faint hum to them.

In my fail testing of the setup, if anything does go wrong it gets loud which acts as a warning to go find whats amiss!

 

[NanoDJS]

just curious why you used shed 80 , thats for pressure, also the wall thickness being smaller changes the output and drain rating of the pipe , always wondered why people spend 4x the money over reg pvc which is already massive overkill for a fishtank pressures

 

[Bigtrout]

just curious why you used shed 80 , thats for pressure, also the wall thickness being smaller changes the output and drain rating of the pipe , always wondered why people spend 4x the money over reg pvc which is already massive overkill for a fishtank pressures

Agreed, i used the thinwall pvc(sdr21)all around. Has a bigger inner diameter than schedule 40 and still rated at 200psi.

 

[KenRexford]

Cause grey is pretty.

 

[KenRexford]

I joke, but aesthetics was my reason. I have a HOB Reef Octopus protein skimmer with the same plumbing type, so I went with grey. The gate valve was also grey, so there you go.