I have this in my tank, was wondering whether things like this are best left alone or whether it's normally ok to remove and replace them?
Replacing drilled tank fittings
- Thread starter IanB
- Start date
Ordinarily I'd leave well alone but it's a bit manky and the inside bit is threaded and the overflow I got with it is the same diameter so needs some other wizardry to fit it.. :dk:
It's the overflow from the tank to the trickle filter..
This is the top of the overflow
which needs to push onto this (on the inside bit)
then I need a pipe that connects the external bit to the top of the filter box
I've found a load of solvent weld bits.. are there no clamp on or push-fit options?
This is the top of the overflow
which needs to push onto this (on the inside bit)
then I need a pipe that connects the external bit to the top of the filter box
I've found a load of solvent weld bits.. are there no clamp on or push-fit options?
Are all the fittings glued?
The pipes on the overflow & the inner side of the bulkhead are the same size? You could run a coupler or if you need to maintain a certain dimension, you could remake the white piping run. Also, you could make flexible coupling out of a section of vinyl tubing & some clamps, as this is the suction side you need not worry about containing pressure.
Typically from the tank to the trickle is a white corrugated hose. But you could also run a vinyl hose of sorts. A barb to thread fitting should be available to go onto the bulkhead theads but a barb x slip fitting to go onto the filter is a bit harder to find. You could replace the filter fitting with a bulkhead to get threads on the filter side for a barb fitting.
Maybe look at what a new unit is pplumber with, it might give you some additional ideas.
In the US, I could probably find all the parts to plumb that at a big-box home improvement store but not sure where you'd get those in the UK.
EDIT: Wait inside bit of bulkhead fitting is the threaded side?
The pipes on the overflow & the inner side of the bulkhead are the same size? You could run a coupler or if you need to maintain a certain dimension, you could remake the white piping run. Also, you could make flexible coupling out of a section of vinyl tubing & some clamps, as this is the suction side you need not worry about containing pressure.
Typically from the tank to the trickle is a white corrugated hose. But you could also run a vinyl hose of sorts. A barb to thread fitting should be available to go onto the bulkhead theads but a barb x slip fitting to go onto the filter is a bit harder to find. You could replace the filter fitting with a bulkhead to get threads on the filter side for a barb fitting.
Maybe look at what a new unit is pplumber with, it might give you some additional ideas.
In the US, I could probably find all the parts to plumb that at a big-box home improvement store but not sure where you'd get those in the UK.
EDIT: Wait inside bit of bulkhead fitting is the threaded side?
Only the overflow is one piece.. the inside bulkhead bit is threaded and the same diameter as the overflow..
None of it requires pressure since the overflow is drilled at the top to prevent a syphon forming (at least that's what my understanding is.. ).. pump increases water level which just overflows into filter.. lordy I hope I've got at least that bit right
None of it requires pressure since the overflow is drilled at the top to prevent a syphon forming (at least that's what my understanding is.. ).. pump increases water level which just overflows into filter.. lordy I hope I've got at least that bit right
Something else just popped into my head..
The return pipe from the pump.. would it be beneficial to fit some kind of valve to reduce flow just in case it's pumping too much water?
Looking at about 3000 lph...
If so.. what sort of valve?
Thanks for the help so far, reckon I almost have a clue what I'm doing now :thumbup:
The return pipe from the pump.. would it be beneficial to fit some kind of valve to reduce flow just in case it's pumping too much water?
Looking at about 3000 lph...
If so.. what sort of valve?
Thanks for the help so far, reckon I almost have a clue what I'm doing now :thumbup:
That would not be a bad idea at all. The overflow to the filter is only dependent upon pump flow to the tank. However if the pump is capable of pumping faster than the overflow can return, you risk overfilling your tank and/or overheating your pump if water levels in the filter get too low.