Hello all :-) , this is my first post on Thunders but I have been reading the threads for a while now.Excellent forum!
Anyway I thought I should tell you about a gravel cleaner that I bought today which can be used as a cheap penis pump.
It is an “Algarde Standard Aquarium Gravel Cleaner” and I bought it from Ebay UK - cost me £5.68 (new)
The cylinder is 9 1/2 inches X 1 5/8 inches (internal diameter).
It comes with a length of clear hose and a tap (but the tap doesn’t hold vacuum pressure- pity)
The top of the cylinder has a plastic green cover where the hose fits on, but this is not glued and so you will need to fix it with something but before you do that, take it off because there is a plastic filter underneath that isn’t required.
I fixed my top on with amalgamating tape just for now and it seals fine.
For all those guys looking for a cheap tube that is smaller than 2”.. Now you know :-)