Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to fix a front load washer so that it does not smell with washer fan [title] Understand what causes the smell to begin with. [step] It is multiple types of mold (including black mold) growing in the internal drain hose inside your washer where you can't see it. [title] Understand why it grows there.

Ending1: [step] The air pressure is attracted to mold, and there is the foul smell which simply sits in the air. [title] In most vacuums, a wet vacuum will effectively fix the problem. Ending2: [substeps] Mold thrives on draining out of the motor; it is soft and easy to place in the ground. It needs to be held up with plumber's caulk clamps. Ending3: [step] Search " mold growth " and you will see that the biggest problem is high humidity (over 60 %). This chart shows you at what relative humidity mold starts to grow. Ending4: [step] There are several articles that show that as soon as the mites start lining the drain pipe and clogging the top pipe, mold blooms. Following these guidelines is a useful first step to make sure your washer needs fixed.

Answer format: ending1/ending2/ending3/ending4