I'm asking these question a bit prematurely, because I'd really like to include some pictures to help illustrate my problem. I'll try to add some pictures tonight, but any ideas you can provide me in the meantime would be great --
I'm having a couple problems with my new Vortex D-1.
1) I'm having a problem with air bubbles and uneven water flow. Lots of air bubbles churning through the impellor and causing a choppy, inconsistent flow. Happens a lot when trying to charge the D1 from a bucket (you know, the tipping the D1 upside down a moment, trying to establish siphon, etc). The D1 is on the floor, the bucket high up on a counter. Sometimes the flow stalls enough for the diatom powder to fall off the bag and seep into the return tube back into the bucket. I'm using the recharge valve and wondering if this is part of the problem because the filter/charge switch doesn't seem to be a completely tight seal. For example, when the recharge valve is closed (on charge), if I tip the recharge valve at an angle, water will leak up into the top part of the recharge chamber. Normal? How's your seal?
2) I'm having a real problem using the unit with my acrylic tank and unless I can work out a solution, this might be a deal breaker. What's the problem? Well, as you know, the top perimeter of acrylic tanks are covered with plastic for bracing. There's no "edge"/lip to hang the darn D1 tubes. I've tried a few modifications, but if the tube angles just aren't right or if the tubes are too long, crimping occurs and/or it only add to the siphon/flow problems. Any other Vortex users out there who use the setup on an acrylic tank?? If so, how do you do it? I'm poked around Home Depot but couldn't work out a solution. I really need something clean like you get when you hang this on the edge of a glass tank -- otherwise the tubes snake around in the tank and there is risk of scratching the acrylic. I don't have easy access to the back of my tank either, so can't hang it there where the acrylic bracing is thinner.
I wasn't very happy with the included D-1 tubing. I couldn't work all the crimps out of it and a crimped area on the intake tube even collapses from the suction. Do you folks replace the stock tubes with thicker Eheim tubes?
All help appreciated so I can try this again tonight. I'd love to keep this wonderful filter.