If I may retort for the Bull , stop over thinking this, we know your smart. But we're talk about holding tanks fluid in the top retention time water and oil separate . Bull switches tanks when there full or a level control shuts it in. At some point we my get a wash tank look that up. I know you would be of get value if we began setting up a fully automatic system with a injection pump and all the new paddle controllers hooked to a PLC . But for now we have a holding tank.