Bosch maxx, uses hardly any water, can't see it anyway, can you adjust the water usage as we suspect it is causing skin rashes by not getting all detergent out, even tho I use the correct amount of detergent

You may want to try a strict daily skin care routine like this one -
An Effective Morning Skincare Routine 8 Steps to Naturally Flawless Skin

before you start a home remedy, go to a doctor and find out exactly what it is then treat yourself if it is not contagious or likely to kill you if left untreated
many a home diagnosed person ( and you don't know what it is ,, has died because when they eventually sort treatment it was too late

Locate the water level switch at the back inside
it is a round plastic unit approx 60mm dia with a rubber hose and some wires
you will find adjusting screws on it

Scabies is an easily spread skin disease caused by a very small type of mite.

It might be a product you use. Perfume agents, certain deodorants and soaps (especially drying or antibacterial) can all cause an allergic reaction. Shaving can also cause a rash. Try to use fragrance free products for sensitive skin. Change to a better or different type of razor.

Rashes can be caused by allergic reactions to the skin or the shaving products you are using. If you believe this to be the case, try unscented products or products designed specifically for sensitive skin.

You will have to get to the back of the machine where the water feed pipe is.
There can be a filter at the supply tap and also in the back of machine where pipe goes into the unit.
If you have hard water do you use salt (dishwasher salt not cooking) in the water softener dispenser and adjusted the machine to the correct level ?

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Please dont forget to vote this answer was helpful

Many thanks

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There are a lot of things to consider when trying to solve this problem. Obviously a front loader washes differently than a top loader. Top loaders tend to using a washing motion that is good for stains but wear out your clothes fast. Front loaders typically use less water and wash more gently, but in some ways still do better than top loaders. Anyway, think about any other variables that go into the laundry equation. Consider the distance the machine is from your water heater. This machine will use MUCH less water to fill than your old one, and, you know how when you turn a faucet on hot it takes a minute for the hot water to actually get there? It's the same way with your machine. If there's a sink next your washer, you should always turn on the hot water on the faucet until it gets hot right before you start the machine. The same goes for dishwashers. If there's not a sink close you can easily turn up the temperature for all hot water on your water heater, although that will use more energy.
Consider what detergent you're using. If you're using high efficiency detergent (like Tide he) maybe you should switch to your old brand. If you're using your old brand of detergent, try getting a high efficiency detergent.