Among the most common mistakes made when installing a new dishwasher are taking inaccurate measurements of where the dishwasher is going to be installed, improper tubing connection to, or the absence of, an air gap device and using ill-fitting screws. Dishwashers that are not installed properly can cause a number of problems for the homeowner, such as flooding, pooled waste water, and mold and bacteria growth do to poor drainage and excess moisture.
When planning kitchen countertops, the size and type of dishwasher unit should be carefully taken into consideration. Dimensions of the dishwasher must be taken down and noted with care. Mistakes in this regard can prove costly as the homeowner can either choose to change the dishwasher unit or make repairs to the kitchen countertop.
The pipes that run to and from the dishwasher should also be planned carefully. The tubing connections must be able to supply the unit with water adequately, as well as provide proper drainage. Tubing mistakes can cause problems with wash functions or cause waste water to backflow into the dishwashing unit. Drain tubing installation can also get more complex if building codes require for such installations to have air gap devices.
Screws, especially the ones that connect the dishwasher unit to the countertop. should be of the right size and be properly screwed on. Since these screws are the only things that are keeping the unit securely in place, they must be driven into the countertop slowly and precisely.