I used to work maintenance at a retirement facility. Each year I cruised through 58 condos and 6 houses to flush the water heaters as part of routine maintenance. At the bottom of a water heater is the boiler drain, to flush the water out routinely (to clean the inside out basically). At the top, usually on the right hand side is a pressure relief valve. It is called a T&P in case you want the heck to know.
The water heater is designed with this so as pressure builds up in the heating of the water, it can from time to time release the air pressure. When that part is not working it may allow it to spit water all around. It is a safety feature essentially. He has plumbed us with a pressure relief valve too. It is the language of the Spirit, speaking in tongue/prayer language. So that our words don’t get in the way and we can speak as He speaks. This is by no means the only use for tongues, just one I share here. The pressures of life can push us to a point we need to release that spiritual pressure, and for me I have learned the essential need to do that. This last round for me showed me the importance of His guidance in releasing that pressure in my prayer language