If the drain hose of a dishwasher has a substantial defect, whether it can be repaired reasonably and safely depends on the material. Corrugated or corrugated hose with cracks along one or more ribs should be replaced. Higher quality hoses made of rubber, for example, are repairable.
Many standard hoses resemble disposable products
There is one rule that should always be considered when repairing a drain hose. Never patch with sticky substances whose reaction to soiled transit materials and heat is not known for certain. Adhesive tape is not even a good idea as a temporary fix. If high-quality adhesives such as self-sealing tape are chosen, the cost often exceeds the price of a new drain hose for replacement.
If bonding is used in any form, it is also important to ensure that the plastic of the hose is compatible with the adhesive. Some reactions cause the material to become brittle, which can lead to breaks, holes and cracks. One problem is often that many manufacturers offer relatively low-grade polyethylene plastic as hose material to save money. This material can almost be described as disposable.
Also of interest: Extend the drain hose on the dishwasher
With better material the repair ability increases
Should the drain hose on the commercial dishwasher be higher quality goods, a repair can usually be done well. Depending on the material, the following substances can help repair the damage:
- Vulcanizing adhesive possibly with patches (rubber).
- Acrylic adhesive (higher quality hard plastics)
- Tube cover fixed with hose clamp
If a drain hose is shortened, care must be taken to ensure a straight cut at the new end of the hose. For hoses reinforced at the ends, this eliminates the need for reinforcement. It should be replaced with a mechanical sealing aid. Hemp and flax fibers can be wrapped around the spigot, as in threads of water-carrying pipes, onto which the end of the hose is later pinned.
Hose clamps should not be the cheapest goods. Products with prices of three to five pounds do not tend to tear out, overtighten the screw or squeeze the hose too much because of low control ability of the application of force.
Also of interest: The correct mounting of a dishwasher front


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David Shaw
Dishwashers expert with over 10 years of experience. He writes articles and shares his knowledge on many sites. Helps you choose the best (portable, countertop, built-in) dishwashers on this site.