For All of you with Hang On Back Overflows

[CoralMeister]

Not saying that HOB boxes are bad, but it is absolutely imperative to check all suction tubes and etc at least once a week. (The tubes that are connected to an air pump such as Aqua Lifter). I get home yesterday, and was seriously scared but relieved at the same time. The output tube of my suction pump apparently got coraline and other precipitate growing inside of it to the point where the tube got clogged and there was no output of water going from the other end of the aqua lifter. The water level was about 1/8 of an inch under the rim, but did not overflow. Thankfully, I have a fail safe system as to where the water level in the tank will get high, but will never overflow. This system prooved successful yesterday. I have a airline tube that is T shaped, in case something ever did go wrong with one suction pump, the backup pump will still pull water. The overflow gph from the tank to sump is diminished by about 60% when the fail safe is turned on, but hey, at least its not a flood all over the place. I can post some pics later, but its a great and inexpensive fail safe idea for all of you with HOB overflows.

 

[MIKE NY]

those air pump assist overflows like CPRs are notorious for overflowing... IMO get rid of it and get either an Amiricle or a Lifereef U-tube overflow. I've been using them for many years without any problems just keep the U-tube clean and I wrap the tube in black tape to reduce algae buildup...

 

[CoralMeister]

those air pump assist overflows like CPRs are notorious for overflowing... IMO get rid of it and get either an Amiricle or a Lifereef U-tube overflow. I've been using them for many years without any problems just keep the U-tube clean and I wrap the tube in black tape to reduce algae buildup...

I have a CPR Overflow for two years straight, and never had a problem until now but I guess you can say it was my fault. They are just so quiet when they run its great.

 

[4Fish]

I have used a CPR for 10 years with no issues. Change your airline tubing every few months, since gunk can build up inside and restrict flow. Also, use a guitar string (D string) to clear inside the nipple. It disloges any build up in the tube. I do that once a month as well.

 

[CoralMeister]

I have used a CPR for 10 years with no issues. Change your airline tubing every few months, since gunk can build up inside and restrict flow. Also, use a guitar string (D string) to clear inside the nipple. It disloges any build up in the tube. I do that once a month as well.

thats also a good tip. thank you.

 

[CHEMCHEF]

D minor is the saddest of all the keys (insert English accent)

 

[jedimaster1138]

The nipple on my CPR CS90 clogged nearly every day. I took to checking it before and after work and found the AquaLifter not outputting anything 99% of the time. Then I got a LifeReef and haven't looked back.

Next step...drilled tank.

 

[Tonyscoots84]

HOB overflows are a bad idea in general all the time and they suck. thanks for warning the community. You guyz are better off getting a reef ready tank 100% all the time..