For me, Home Depot didn't have it, but Sears did. ...could vary store to store too. I heard that spa/pool suppliers could have it, but the place i stopped at didn't, although they said their installer could sell me some from his truck when he was in. HTH
i don't know if this'll translate well, but the $$ seem reasonable. try here --> http://www.eponds.com
good source for inexpensive POWERFUL pumps (you should see the feeders i've hit with "the blender"! i do plan on building a waterfall....LOL!!!
also, they sell large quantities of meds for fresh...don't know if melafix "swings both ways".
I got 2 inch from savko. Still have a lot left too. Home depot calls flex pvc what I call reinforced vinyl tubing. The price and shipping wasn't all that bad from savko if you can't find it locally.
Yes, but it's extremely difficult to work with in the larger diameters unless you heat it up to make it more pliable. I have not found it in larger than 2inch ID at home depot. I have also found that it collapses on itself when I use it on some pump intakes. Since it does get much more flexible when heated I boil an end and use it over a bulk head fitting since no standard pvc fittings I can find locally will fit over it.