Right. Water-levels have been an issue for many years--Believe it or not. There's Huge amount of people (Anecdotal granted) that claim newer washers Dont clean as well as Older.
--Even Loads of videos on youtube describing How to adjust pressure-switches for water level increase.....
Now--Who is to blame? Makers of washers?--NO it Isnt Them to be honest!
A little tome called, Agenda-21. A multi-hundred page document that describes how we are to live our lives in the 21st century.
Did you know, that from 2011 on, 5Kg Washers were allowed to use 80 litres for a complete wash to completion cycle?
Did you know that from 2013, that the allowed water use for the same/equivalent new model 5Kg washer has been reduced to just 60 litres of water?
60L of water Sounds like a Lot--But it really Isnt. Consider that a large washing-up bowl is around 18-20L to the brim.
--So, makers make the machine use say, 20L for a wash, and then two 20L rinse stages for the complete cycle, or three rinses using even less water.
The total allowable used must still be under or at 60L....
They,--The Makers,- have come up with many dodges to try and increase efficiency with recirc pumps in some cases, --not bothering at all in others (The cheapos), but the upshot is--There's just Not enough water in the machine to do a Good job--regardless of the detergent used.
Dont get me started on the daft LOW TEMPERATURE wash cycles! From 2013, they are also insisting that all washers are able to do a 20 degree wash--Whats the point in That!--Might as well just do aerobics in the rain and forget the washer completely!
All Makers are obliged to abide by the Directives implemented and adopted from Agenda-21 via the various EU Agencies etc (Environment Agency here in UK, EPA in USA), so ALL New washers are equally as (Bad) good at washing as any other NEW Machine. Makers don't really care--nothing they can do really if they want to sell their (Now Crap) machines, the machines only last about 4-5 years anyway before they rot out and throw a spider--again due to too little water IMHO.
Particularly of interest, are the low rinse levels for Allergy sufferers, Very often the poor rinse cycles are causing these folk problems.....
My question and experiment wasn't because my machine doesn't wash well, more an observation and a possible solution to a known (Anecdotal) issue, --If I end up making my machine wash a little better--well, Job's a good-un.....
As to imbalances before spin, due to excess water retention in the clothes--The normal rinse cycle (Of my machine) uses more water than the wash--Up to the door-seal--so the washing is pretty well saturated--cant get wetter, so this is a non issue!