A bit more context would help - but maybe this is what you are looking for!?

Spülmittel is generally detergent or maybe washing agent. According to LEO, "Lauge" is a kind of base (generally used in chemical contexts). Well, it can have some other meanings too, admittedly. But "detergent base" gets over 10,000 Google hits. That doesn't mean it's the right translation, of course, but I think it's reasonably likely.

As in:

"Plumbing problems often distress new homeowners. A common plumbing complaint is suds or water coming up in drains within the home. Depending on the location of the bubbling, the problem can sometimes be fixed without hiring a contractor, but in more severe cases, a plumber is required. The bubbling is caused by an inability for the water and soap to drain from the appliance and away from the house by way of the local sewer line (in the room) or the main sewer line.
When and Why Does it Happen?
People often notice the bubbling of suds and water while an appliance, such as a washing machine or dishwasher is running and draining. If the problem is apparent in multiple drains, or with multiple appliances, the problem generally stems from a blockage at the main sewer drainage line. If the draining problem occurs in only one room, it could be caused by a blockage in the sewage drain line running from that room to the main drainage line, or just in the sewer main itself. If the suds and water bubble up in a drain, but then eventually drain away, the blockage may be partial. If the suds bubble up and do not drain, a full or mostly-full blockage may be occurring."

http://webcache.googleusercontent.com/search?q=cache:ruolwGY...

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