Question about siphon hoses

[Jannika]

the diameter of the vac will affect your suction as well. The narrower the vac (not the hose) the greater the suction because you have the same amount of water trying to move through a smaller space so if your old vac had a smaller tube on it that would explain why this one seems to have less suction.

That makes sense, thanks!

 

[Jannika]

i am going to go a different route. that doesnt look like a very decent gravel vac. aka, looks cheap. why not get a standard one with .5in tubing?
example (but without the strange thing on end)

I have a 'self-starter' type and don't like it, especially for my two shallower tanks.

The one on the right is what I've been using. The tubing is thin but soft so it stays put, and the suction is great. I liked the idea of a flow control valve, but I can live without it. Thanks all!