Hello. What do you think about this? http://www.maquinaphk.hpg.ig.com.br/home.html It seems to have the same principle of an automatic VPI (automatic scrub and vacuum from above), but cheaper than the KAB EV-1.
$135 for some pvc pipe fittings and a plastic box that really amount to nothing more than a vacuum sweeper attachment. I'll stick with my own homebuilt rcm.
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