How to use a Gravel Vaccum?

[sky-raptor]

I just got a large Top Fin Gravel Vacumm and I am having problems getting enough pressure for the water to go through the hose. It has a "self-starting siphorn" and I tried blowing in the hose, but I am not getting enough pressure to pump out the water. Am I doing something wrong?

Thanks

[Andos99]

Don't blow in the hose, rather, suck hard until the water begins to come out. Have your bucket handy and time it just right so you don't end up with a mouth full of tank water. Or you can submerse the entire hose in the tank (filling it with water), put your thumb over the end of the hose, aim it over your bucket and release your thumb.....this will start your flow as well. Good luck.

[lovemybarbs]

I have one. You dip the end of it in the water (the vacuum end), don't take it out of the water when you do this. Keep it submerged. Go up and down under the water until the suction starts. It takes about six or more good plunges in sequence. You know, sort of plunge it up and down pretty hard until the water comes out. The other end of mine is always on the floor in the bucket. You're not alone. I got frustrated when I got mine.

Keep trying, it will work. Don't put it in your mouth. Yuck.

[mr funktastic]

lol the only way to describe how to do it is kinda dirty so i will sum it up. a few quick pumps up and down will ge the water flowing. try to get the hose as far down from the actual vac part becasue the water will flow out easier. if the bucket is level with the tank it will be much harder to start. u really only need to get the water over that initial bump of the tank lip and it will flow. i just bought 25 feet of clear tubing so i can run it directly to my tub and the only way to start it is to suck on the end. but i have 25 feet to remove my wouth before the water gets to me so i have never had a problem. i only remove a 5 gallon water jug of water when i do a ravel vac. also the bigger the vac the harder it is to start.

[jcarlilesiu]

Maybe i do it different than everybody else, and i don't mean to cause any confussion, but the pumping it up and down thing seems like a pain in the *!%$

Just put the vacuum end in the tank with the hose in a bucket. hold the vacuum end under water with the opening facing upwards until the chamber fills with water. Lift it up once to get the water running down the hose and then dunk the end back under water before the chamber goes empty. Keep it vertical and the air that got in the chamber as you lifted it out of the tank escapes to the top. Then just turn the vacuum to face the gravel and off you go.

Oh and P.S. keep an eye on your bucket, or you will be mopping up the water mess

[Jobin]

i find it easier if you suck the end of the hose untill it is afew inces from the end then quickly drop it in a bucket. make sure the end is the lowest point.

[donttaptheglass]

I put the whole thing in the tank and let it fill completely and put my thumb over the end like Andos99 suggested. Much less mess and if I'm doing a large water change (20 Gal) then I can just leave the whole vacuum in the tank while I empty the 5 gal bucket and the vacuum is ready when I get back.

Also keeps me from having to put my mouth on it.

"I never drink water because of the disgusting things that fish do in it." --W.C. Fields

[ikon]

Originally Posted by donttaptheglass

I put the whole thing in the tank and let it fill completely and put my thumb over the end like Andos99 suggested. Much less mess and if I'm doing a large water change (20 Gal) then I can just leave the whole vacuum in the tank while I empty the 5 gal bucket and the vacuum is ready when I get back.

Also keeps me from having to put my mouth on it.

"I never drink water because of the disgusting things that fish do in it." --W.C. Fields

im told to only take out about 25 % to 50 % of the tank water .... well my question is ..... b4 im finished cleaning the rocks 50 of the water is already gone and im not finished cleanin the rocks .. what the heck shud i do ????? stop or continue cleaning the rocks ?????/

shud i remove the fish and plants/ornaments b4 cleanin rocks ????

[europas_ice]

b4 im finished cleaning the rocks 50 of the water is already gone and im not finished cleanin the rocks .. what the heck shud i do ?????

LOL -- I've wondered about this too. All I know is you probably don't want to change more than 50% of the water so that the fish don't have a complete shock to the new water. You might try stiring up the rocks before you start siphoning, to get the crud in the open water, and then at least half of the crud will be sucked down in your 50% water change. But I would also appreciate tips from the experts.

[donttaptheglass]

Well, for me 20 gal is only about 45% of my water, but as europas_ice says, I do stir up the gravel quite a bit and a lot of stuff does float around the tank, some of which gets sucked up in the filter as I clean and some in the gravel vac (I have a canister filter that I keep running while I'm doing it). Once I've taken out all the water I'm going to, then I just stir up the gravel, let the filter take the rest of it until it all settles . . . stir it up some more, let it settle, stir it up, let it settle . . . just repeat until I'm happier with it, then fill my tank back up.

When I'm all done, I give the filter a rinse out and I'm back in business.