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Step 2Parts list: commercial
The project uses some purchased components plus some raw stock materials that must be transformed in a machine shop.
Commercial parts that go into the final product unmodified:
-- CamelBak Big Bite Valve, $5.95 each from Mountain Sports Online, part number 016805
-- White Polyethylene Single-barb Tube Fitting, Coupling For 1/4" Tube , $4.74 each from McMaster-Carr, part number 2808K106
-- 304 stainless steel regular-wall 0.134" diameter hypodermic tubing, $4.85/foot from SmallParts, part number HTX-10R
-- Supravalve Polycarbonate Check Valve, 1/8" tube fitting, $4.50 each from SmallParts, part number CVP-02
-- Smooth-Bore High-Purity Clear Tygon Tubing 1/4" ID, 3/8" OD, 1/16" Wall Thickness, $1.84/foot from McMaster-Carr, part number 5466K14
-- Smooth-Bore High-Purity Clear Tygon Tubing 1/8" ID, 1/4" OD, 1/16" Wall Thickness, $1.58/foot from McMaster-Carr, part number 5466K12
-- Polypropylene Quick-Disconnect Tube Coupling Socket, 1/4" Size, for 1/4" Tube ID, with Valve, $11.77 each from McMaster-Carr, part number 51545K73
-- Polypropylene Quick-disconnect Tube Coupling, Plug, 1/4" Size, For 1/4" Tube Id, W/o Valve, $2.37 each from McMaster-Carr, part number 51545K69
-- Nylon Loop Strap for 1/4" OD, $5.12 per Pack of 100 from McMaster-Carr, part number 8876T13
-- Nylon Loop Strap for 1" OD, $12.46 per pack of 100 from McMaster-Carr, part number 8876T42
-- Black double-sided velcro, available from Fry's or Michael's Crafts, lifetime supply $16.99
-- GE Max5000 Siliconized Acrylic Caulk, available for cheap at hardware stores near you
-- PET soda bottle, available for free from a recyling bin near you! Many brands of drinking water and soda work well with this design, although Coca-Cola bottles have too few threads.
The total cost of commercial parts to make one unit as of January 2008 is about $29 although you could save by purchasing the parts in larger quantities.
For valve-switchable two-tank system, add
-- 3-Way Stopcock With 2mm Bore, US Plastic part number 17223, $44.11 in single quantities.
Commercial parts that go into the final product unmodified:
-- CamelBak Big Bite Valve, $5.95 each from Mountain Sports Online, part number 016805
-- White Polyethylene Single-barb Tube Fitting, Coupling For 1/4" Tube , $4.74 each from McMaster-Carr, part number 2808K106
-- 304 stainless steel regular-wall 0.134" diameter hypodermic tubing, $4.85/foot from SmallParts, part number HTX-10R
-- Supravalve Polycarbonate Check Valve, 1/8" tube fitting, $4.50 each from SmallParts, part number CVP-02
-- Smooth-Bore High-Purity Clear Tygon Tubing 1/4" ID, 3/8" OD, 1/16" Wall Thickness, $1.84/foot from McMaster-Carr, part number 5466K14
-- Smooth-Bore High-Purity Clear Tygon Tubing 1/8" ID, 1/4" OD, 1/16" Wall Thickness, $1.58/foot from McMaster-Carr, part number 5466K12
-- Polypropylene Quick-Disconnect Tube Coupling Socket, 1/4" Size, for 1/4" Tube ID, with Valve, $11.77 each from McMaster-Carr, part number 51545K73
-- Polypropylene Quick-disconnect Tube Coupling, Plug, 1/4" Size, For 1/4" Tube Id, W/o Valve, $2.37 each from McMaster-Carr, part number 51545K69
-- Nylon Loop Strap for 1/4" OD, $5.12 per Pack of 100 from McMaster-Carr, part number 8876T13
-- Nylon Loop Strap for 1" OD, $12.46 per pack of 100 from McMaster-Carr, part number 8876T42
-- Black double-sided velcro, available from Fry's or Michael's Crafts, lifetime supply $16.99
-- GE Max5000 Siliconized Acrylic Caulk, available for cheap at hardware stores near you
-- PET soda bottle, available for free from a recyling bin near you! Many brands of drinking water and soda work well with this design, although Coca-Cola bottles have too few threads.
The total cost of commercial parts to make one unit as of January 2008 is about $29 although you could save by purchasing the parts in larger quantities.
For valve-switchable two-tank system, add
-- 3-Way Stopcock With 2mm Bore, US Plastic part number 17223, $44.11 in single quantities.
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