Descaling system: useful or not?

0*dH is also not done. Everything less than 6 or towards 4*dH is good.

And what did you install, if I may ask so freely?

I have something Italian but comparable in terms of technical data and quantities etc. to the softliQ:SC18 from Grünbeck.

Who installed and adjusted the system? It looks like <0 dH. Everything <8 doesn’t bring any benefits for now.

The picture shows the water test immediately after commissioning. The adjustment was then made afterwards. I can take another picture tomorrow. It is something around 5-10 dH now. Ochre, basically.

Is it worth it in your opinion?

In what sense? Monetarily? Probably not. Comfort gain? With 14 dH rather low, but probably present.

Humidifiers? The BDAs of such devices explicitly point out that such water should not be used and that it could damage the devices.

Which humidifier are you talking about? At least with Venta I am not aware of that; rather the opposite, with them the water additive would last longer. I can also hardly imagine how the exchange of Ca ions for Na ions should damage the devices in any way. Except of course with 0 dH water, where the pH buffer is missing.

Overview

Of what? The available systems? Pros/cons?

In what sense? Monetary? Probably not. Comfort gain? With 14 dH rather low, but probably there.

Yes, so the difference in limescale deposits, since the value here is actually not that high. But I find it is quite limescale-rich. So if you go down to about 6-8°, whether that is still a big difference.

Which humidifier are you talking about?

Specifically: Fred from Stadlerform.
It is even a water vaporizer (that is, with heat) basically it is a big kettle.

I also can hardly imagine in what way the exchange of Ca ions for Na ions should somehow damage the devices.

Could it be that there is a risk that the heating plate corrodes away? Because sodium is more reactive with other metals than calcium? No idea, dropped chemistry in 12th grade and forgot everything before that.

About what? The available systems? Pros/Cons?

Yes, but also the technologies. There is probably salt, resin, osmosis, precipitants, etc.

So if someone knows something...

But I find it quite limescale-rich

What exactly is bothering you? Limescale deposits? They decrease, but don’t completely disappear even at 4-6 dH.

Could it be that there is a risk that the hotplate corrodes away?

Well, if that thing is not a disposable item, the hotplate must somehow be ceramic-coated. I wouldn’t know what a sodium compound should do to harm it.

Also: The water coming from your softening system must comply with the drinking water ordinance. Accordingly, water with the same mineral composition as your softened water could come from the tap as untreated drinking water somewhere in Germany. I wouldn’t know how manufacturers/systems want/can distinguish that.

I have the suspicion that with this device (StadlerFORM), the function follows form principle applies, meaning the device has a failure by design and the manufacturer wants to push the customer group with softeners out of the warranty.

Yes, but also the technologies.

Salt = resin. Osmosis is overkill. Some manufacturers also do precipitation, but ion exchangers are more widespread and easier to handle.

we are now also facing the question of whether to have a descaling system or not.
We have "hard" 18 dH, but we manage quite well with it.
I do not want to descale the drinking water - the question only arises for us regarding the underfloor heating: if we do not take a descaling system for the heating, can the pipes objectively calcify faster and become defective?
If yes, are there other options besides a descaling system?
I can no longer see through the jungle of advertising and half-truths from the internet...