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Originally Posted by davis.1841  Hoppy just currious, whats the cost range for one of your DIY drop checkers??? |
The cost of making one of these is hard to say. Tap Plastics, or at least my local store, won't sell small pieces of acrylic tube, so I bought 5 foot long pieces, which are about a dollar per foot. The little acrylic disks are about 50 cents each. And the cement is a few dollars for a tube big enough to make a hundred or more of these little things. The suction cups are "Lee's Heater Holders", two per package and a couple or so dollars for the package. I didn't have disks to fit inside the 1" dia tube, so I used a 1" hole saw to cut out pieces of 3/16" acrylic for those, since they needed a hole down the middle anyway. The cost of that is as near zero as you can get. I'm guessing my cost for each of these would be around $3. When I get thru with these, probably tomorrow, I will give them away for the $4.50 cost of priority mail plus PayPal fee plus $3 for the materials - $7.50, and one has already been spoken for. The Red Sea version on EBay just went for $14 including shipping, so this is still a bit cheaper, especially if you already have a pH test kit, and it's a lot cheaper if you make your own. (Providing you have a use for the left-over tubing and cement.)