Don’t put any of your personal soap in the tank when it’s an upstream tank. There is a possibility of getting soap out of the tank in the same way as normal. Don’t add bleach or anything else that can be hard. If you add it there, it will get through the tank. through your water pump before going into your hose. Now, it will be quite potent. You should do this only in the case of a downstream hose. You should avoid making use of harsh chemicals when you build your soap on your own. crih9trg6u.