The plexiglas lid for my Hold Fast vac chamber, model V823, cracked the last time I used it. On the TMI (makes of Hold Fast) web site it appears they no longer support that model. The new vac chambers have a high strength tempered glass lid. Does anyone know where I might get a replacement plexiglas lid for my tank? Plan B is to get a high strength tempered glass lid. Then drill holes high in the side of my tank and attach the hose fittings in the tank wall (just like the newer models). Thanks for any advice you stabilizers might have to offer.