Water Leak Where Drain Hose Is Connected To Stand Pipe

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Water escaping from standpipe connection on Miele Prestige Plus 6 drain hose

The problem

A Miele Prestige Plus 6 washing machine was reported to leak a small amount of water from the top of the standpipe where the drain hose with a P-shaped crook/shepherd’s hook is inserted.

Likely cause

Most strongly supported causes were the drain hose not being inserted far enough into the standpipe, allowing pumped-out water to spurt out, or a partial blockage in the standpipe waste, commonly around a 90° or 45° bend.

What fixed it

Recommended action was to check that the end of the drain hose is pushed several inches into the standpipe, but not excessively far. If the hose is already correctly positioned and water still comes out of the top, the advice was that the standpipe likely has a partial blockage that needs clearing. The exact repair carried out was not confirmed.

Checks to try

• Checked whether the drain hose end was inserted several inches into the standpipe
• Listened to the drain sound for a change from normal gushing to a vessel-filling sound during pumping out
• Original poster had already put a metal snake down the waste to check for a blockage

Parts or tools mentioned

• Drain hose crook/shepherd’s hook
• Metal snake