Please, DO NOT use a pressure washer on this furniture!. There are safe ways to clean the furniture properly and then you can color, seal accordingly. DO NOT use Thompsons water seal.!!! I am sure there is a web site on maintaining teak furniture.

I buy teak furniture by this place near my house (import store) called La Place Interiors. They have a yahoo store with instructions for cleaning teak furniture. I've never had a problem and they are VERY reputable around here.

My recommended way to clean teak patio furniture is to mix in a bucket a 3 parts mild laundry detergent with one part bleach mixture with water.

Now wash the furniture using a soft bristle brush. Do not use a hard bristle brush as it may damage the furniture. After you have given the furniture a good scrub with the cleaning mix rinse the entire piece of furniture to make sure all dirt is removed.