OT Dishwasher drain

Second question. Why do they say the drain hose needs to loop up at least 32" high before going down to the fitting on the sink drain? The fitting on the sink drain is only about 20" high so I'd put a loop on the side of the dishwasher then went under the cabinets to the drain. Do I really need that loop? BTW we don't have and aren't required to use an air gap.

Thanks, I can always find good help here.

Mine fell down, the dishes do not get clean and a lot of soap residue left, especially noticeable on glasses and cup handles.

The problem was, the water doesn"t stay in the dishwasher, and it goes straight out the drain, nothing to hold it back.
Cost me a $125.00 service call to find that out, he didn"t fix it that was extra.

I had just remodled the house in 93 and they used PB pipe everywhere and then PB up and disappeared. I don't like those large wrench tightened compression fittings they give me to use on PB now but that's about the only way to connect to PB any more. Also when origionaly installing the dishwasher I couldn't find any ready made supply line hoses so mine is kind hard plummed. I see now they have kits with braided supply lines that screw on at the dishwaher and shut off valve just like for sinks and toilets. If I can get a fitting for PB that that kind of hose will connect to I'll do that.

P.S. What is EPDM tubing? My parents just had a new house built and their dishwasher uses that for a discharge hose.

Satisfactory compatibility with fireproof hydraulic fluids, ketones, hot and cold water, and alkalis. Unsatisfactory compatibility with most oils, gasoline, kerosene, aromatic and aliphatic hydrocarbons, halogenated solvents, and concentrated acids.

Mechanical Properties

Hardness, Shore A 40 - 90 Tensile Strength, Ultimate 17 MPa Elongation at Break 600 %

Thermal Properties

CTE, linear 68�F 576 �m/m-�C Maximum Service Temperature, Air 150 �C Minimum Service Temperature, Air -54 �C Glass Temperature -54 �C

I've been back to Lowes but couldn't find anything and, well we all know most of their staff isn't really that acknowledgeable. I've given up for today. I'm going to try to find a plumbing supply house nearby and go by there at lunch tomorrow. Hopefully I'll have it fixed over the Thanksgiving holiday.

The PEX tubing is cross-linked to insure uniform structural integrity and a lifespan of over 200 years. It contains an integral oxygen diffusion barrier on the pipe that is critical to preventing corrosion within the system from the aggressive nature of free oxygen molecules that can readily destroy other types of radiant tubing on the market. The difference in quality is well worth the extra cost over polybutylene (PB) tubing, rubber tubing and tubing cross-linked by the Silane method.

There are several methods used to cross-link polyethylene. These methods produce products with very different properties. A distinction should be made between PEX produced above the crystal melting temperature ("hot" cross-linking), and PEX produced below the crystal melting temperature ("cold" cross-linking). Simply stated, there's a difference between PEX cross-linked during the manufacturing process and PEX cross-linked as a secondary process.

Once I put the loop back up, it started working fine again.