How to clear all the water in the ocean and still make money (Fallout 4)

In Fallout 4, there are several settlements near the ocean, with a large coastline. For example, the Lighthouse (where the cultists used to live) or the Castle. In principle, you can even use a Senchuari. The salt is to install dozens of industrial water treatment plants in the water. The maximum water produced is 999. Remember that protection will need 999 +, otherwise frequent attacks are possible. To make it less bothering with this, you can install the mod to add robots to the protection section. The guard robot gives 50 protection, and the others are smaller, but on the other hand Protectron Medic adds 8 Defense and 20 Happiness Link to mod http://www.nexusmods.com/fallout4/mods/5787/?

In general, put a huge number of water treatment plants, the radiation background in the ocean will gradually decrease. Hundreds of bottles of purified water will be added to the workshop of your settlement every day. It can be used as a first-aid kit or sold.