Those with Hydor L series pumps...

I've just about got my setup ready for testing, but I'm running into a problem with the intake area. The part that screws down and holds in the impeller (that shaft with the propellers on it) doesn't want to stay screwed in. I've put a little silicone grease on it to keep it watertight, but it just won't stay in, and I'm about to go slap a resivoir in and drop the pump in there. However, I'd much rather not. Any help on keeping it in there would be great.

I can't believe I'm getting shirked by one little thing.

so you put grease on threads that require friction to function and now it wont stay closed? next tim try teflon tape =)

Big B said:

I've just about got my setup ready for testing, but I'm running into a problem with the intake area. The part that screws down and holds in the impeller (that shaft with the propellers on it) doesn't want to stay screwed in. I've put a little silicone grease on it to keep it watertight, but it just won't stay in, and I'm about to go slap a resivoir in and drop the pump in there. However, I'd much rather not. Any help on keeping it in there would be great.

I can't believe I'm getting shirked by one little thing.

Click to expand...

hmmmm I have a L30...but I don't think you have to do that. Mine just turn and it locks in..never needed silicone or anything.

When I first got it...I thought of the same thing that I need glue to hold it together

I did have teflon tape on, but the thing was leaking. My dad gave me some sealant that he uses on car engines and see if that works. If not, I guess I'll be using a resivoir.

I have an L30 and never had that problem... maybe something is wrong with your pump and you should return it???

Big B said:

I've just about got my setup ready for testing, but I'm running into a problem with the intake area. The part that screws down and holds in the impeller (that shaft with the propellers on it) doesn't want to stay screwed in. I've put a little silicone grease on it to keep it watertight, but it just won't stay in, and I'm about to go slap a resivoir in and drop the pump in there. However, I'd much rather not. Any help on keeping it in there would be great.

I can't believe I'm getting shirked by one little thing.

Click to expand...

The impellor housing is on backwards which causes the blue part that screws on and hold it tight to bow on one side and pop back off. I had that same problem and couldn't figure it out and the screw on part just wouldn't stay on. I took the thing apart and I noticed how the impellor housing has a key fitting to fit into the main pump housing. It's like a little notch to line up with the main pump housing. Get it on upside down and that key causes the housing to sit a hair higher than it needs to be. It's easy to get them on upside down because it actually seems to look as if its on right.

That's the only gripe i have with the pump. Could of made that key fitting a little bigger so there is no possible way of getting the impellor housing on upside down.Keep it simple for us dumbies. lol

Thanks for the info. I'll have to check that out.