The WM25 as with all Aquarius models has a low level as standard, super rinse would fill about 2 inches up the glass on my Nana's.

To be honest, water levels aren't important when it comes to rinsing, there are plenty of variables - in my opinion spinning out the soapy water between the rinses is more important.  2 low level rinses in my washing machine on the cottons cycle with faster interim spins always rinses better than the 2 high level rinses on the Minimum Iron/Quick Wash cycles that don't spin as much between the rinses.  The Miele I have will spin for up to 4 mins (depending on the load size) at 1000rpm after the mainwash, and gives the rinsing process a huge kick start.

Again, on my Hoover Electron the first two rinses will always be soapy, but as soon as the interim spin has kicked in on after the 2nd rinse the water on the following rinse is far more soapy.

I've found higher water levels on rinses can actually produce more foam; if you select water plus on my machine the first rinse will always be at a lower level than the following 2.

Either way, it's all horses for courses, and there are many more variables involved than just the amount of water, and to be honest with most loads apart from towels I still have adequately rinsed laundry with the standard 2 low rinses and have no adverse skin reactions even with my eczema.

Jon

Bear in mind as I run a modern(ish) low water level machine alongside a Hoover Electron, I am here to tell you that considering the extra water it uses (which I do not mind, got to love a bit of washday drama) it does not rinse significantly better than the Miele.

Like I said before, there are more factors to consider.

Jon

I have a W2652WPS, it has the water plus option where you can add rinses and/or increase the wash and rinse water level.  It will fill from between the edge of teh drum rim to a third up the door depending on the load and whether or not you select water plus.  I always use water plus on towels, but mainly for the extra rinse rather than the higher water level.  I have found that rinsing results are good even with the standard 2 rinses on your average mixed load of clothing.

Mine takes anything 1.30 max for a normal cottons cycle without extra rinse, or 1.45 with extra rinse.  Bear in mind however it is only a 5 kilo model, if you press Intensive and will alter the drum rhythm on the wash, it adds half an hour to the wash cycle but I very rarely need to use it on our laundry.

Jon