The standard modifications to the stock tank can be found on the Skippy's stuff site. Others have done various changes to the basic design as they decided they needed. I'm fine with the standard setup. I think I remember it took only a part of an afternoon to do the whole thing. The shopping took longer. Sandy Here is a link that might be useful: The skippy filter

cottagecindy: "I see online thru Natl Builders supply and Builders direct store that the same toilet is only $304.50 then add the seat. I don't get it. Is it the SAME toilet made in the SAME location?" We are tireless advocates of buying locally to support local merchants, but we encountered a similarly large price disparity last year when we were looking to purchase a Toto Vespin II, so we compromised our principles and bought the toilet from National Builders Supply. NBS is located in the same neighborhood as Toto's United States factory (and Subaru of America's headquaters, FWIW). The toilet is a genuine Toto; we installed it one year ago today, and it has worked flawlessly for 365 days. The components of the toilet and the seat were packaged in boxes within boxes, using a combination of styrofoam peanuts and foamed-in styrofoam. The amount of time required to unpack the toilet should make you ponder if you want to pay a plumber's hourly rates to perform that (non-plumbing) job for you. Unpacking the toilet preferably should be done in a room that can be sealed tightly, as it will make the biggest mess you ever have seen, and the styrofoam bits and pieces all carry electrostatic charges that will make them cling to EVERYTHING. Getting the boxes and the removed styrofoam into a vehicle for transportation to another site after unpacking the toilet, and then disposing of them, will be another major job in itself. Bottom line is that, for the amount of money we saved, we would do it again.

We are not suppose to recommend on-line stores on the message boards. Some store names are banned and you get a warning to be banned for posting them. e-mail works.

I haven't used them but I've used Fosters & Smith, 1800Petmeds, Marinedepot, Amazon, and even pets.com! Remember them? I'm an early adopter. I don't remember what I got from them. The others are more recent and were good transactions.