https://www.polymaster.com.au/chemical-and-water-treatment/self-draining-tank/
Self Draining Tank - Polymaster
A self-draining chemical tank suits all chemicals to allow complete drainage of liquids up to and including 1.5SG. It can be either made in out 7032 material...
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https://www.flirt4free.com/videos/guys/webcam/27697277-daily-self-draining-wild-release.php
Flirt4Free Videos - Rico Cachetes - Daily Self Draining, Wild Release
Rico Cachetes's 3 minute long cam clip - It’s really a pain in the neck to cum all over my own hairy torso, but damn it feels so good to shoot wildly
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