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Deliver mash recirculation wort or sparge water precisely to the top of any grain bed height with this kit. This assembly is made from "Loc-Line" which is a the trade name for this positionable plastic tubing used wherever flow needs to be directed and stay put. You can adjust the output from the same height as the port all the way down to 12" below the port to adjust for five or ten gallon batches of varying grain bills.We spent way too long trying to come up with a clever name for this
thing. Mash Tube, Any Height Recirulation Port, Sparge Height Thingy. A
lot of people use a piece of hose or copper tubing on the inside of
their mash tun recirculation (or sparge) port but it's not as cool as
this.
You have a choice in how you'd like to mount the kit and what vessel it is going into. All options include a number of 1/2" ID straight interlocking locline segments and one locline to 1/2" NPT thread adapter. Read the options below for other differences:
- Plastic Only - You can buy just the loc-line assembly including the 1/2" male connector and 16 flexible segments and thread it into your own bulkhead. It provides a maximum vertical drop of about 12" with the last two links bent to horizontal.
INSTALL KITS
All install kits include the plastic parts above, two SS metal washers, and a hose connect/QD fitting for the input (choices below):
- Install Kit with Hose Barb. After drilling a 7/8" hole in the top sidewall or through the lid, insert the male threads of the locline assembly through the hole using one SS washer on the inside and one on the outside. Add teflon tape to the threads and thread on the Hose Barb fitting. You can connect your hose directly to the barb.
- Install Kit with BLQD-A. After drilling a 7/8" hole in the top sidewall or through the lid, insert the male threads of the locline assembly through the hole using one SS washer on the inside and one on the outside. Add teflon tape to the threads and thread on the BLQD fitting. You'll also need to buy a BLQD C, Cplus, C90 or Cplus90 to connect between the fitting and your hose.
- Install Kit with Camlock type A. After drilling a 7/8" hole in the top sidewall or through the lid, insert the male threads of the locline assembly through the hole using one SS washer on the inside and one on the outside. Add teflon tape to the threads and thread on the Cam A fitting. You'll also need to buy a CamC, CamBigC, or CamBL to connect between the fitting and your hose.
- Install Kit with BLQD-A90. After drilling a 7/8" hole in the top sidewall or through the lid, insert the male threads of the locline assembly through the hole using one SS washer on the inside and one on the outside. Add teflon tape to the threads and thread on the BLQD fitting. You'll also need to buy a BLQD C or Cplus to connect between the fitting and your hose.
Zoom in on the main picture to see these options more clearly.
This image below is the BLQD-A90 option when it's threaded together. Your vessel lid would sit between the two SS washers (not shown in the picture).
- SPECs from the manufacturer:
Material: Acetal Copolymer
Compatibility:Yes: Acetone, Alcohol, Ethyl, Greases, Oils, Commercial Dish Detergents, Gasoline, Lacquer Solvents, Sodium HydroxideNo: Acids, Ammonium Hydroxide, Bases Strong, Hypochlorite Ion Solutions, Sodium Hypochlorite
Melting Point: 329° F Maximum Operating Temperature: 170° F (Repeated exposure over this temperature will cause fatigue)
"Acetal Copolymer" appears to be the generic name for Delrin. More about Delrin on Dupont's site here.
More about food contact from a distributor:
Q: Is Loc-Line safe for food contact"
A: The material used to manufacture Loc-Line is an acetal copolymer. This material, in accordance to the rules 21 CFR 177.2470, meets the requirements of this regulation for aqueous food contact. Not applicable for fatty foods and alcohol. All colorants are used at the recommended let-down ratio and meet 21 CFR 178-3297 for food contact.
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Good quality but did I need it? 
Elegant solution for mash return