Soap, Soap, Soap

Will clog your drain in no time.

Since you are using slow drain in you pit, the soap will settle down and block it.

You need a soap filter before the pit.

You can buy one or build it your self.

There are many DIY soap filter, where using mosquito net is simplest.

Soap, Soap, Soap

Will clog your drain in no time.

You have the right size pit, of 225 cubic feet = 1,500 Gallons.

The washing machine outputs up to 40 Gallons.

So why is your pit not draining?

Look at he bottom and find out there is a soap layer covering the bottom. Over time it will simply fill up and spill over.

Since you are using slow drain in you pit, the soap will settle down and block it.

You need a soap filter before the pit.

You can buy one or build it your self.

There are many DIY soap filter, where using mosquito net is simplest.