Good, extremely flat aspirating pump is not quite as well equipped

By chance I was reading a product review here on Amazon to search for a replacement for my decrepit become ALKO TAE 300 that Kärcher submersible pumps in the program, which can suck incredibly flat. This is exactly what I need, but because I have to poop a swimming pool without collecting shaft to the annual changes of water. So far, then the missing centimeters were laboriously removed with water vacuum cleaner.
A little tip for dry eye:
Instead of the full suction bucket for pouring laboriously to heave out of the pool, the Kärcherpumpe here is compact enough to suck the bucket itself. They fit in with my Kärchersauger into the collection container. Cross friendly and very fast the whole.

The SCP 9000 designed this now without any problems and sucks already virtually everything from the basin. So there are in my 26m3 pool then only 2 wet vacuum fills up dry. To achieve this, three distance-maintaining feet to stop by water switch in automatic mode collapsed, whereby the intake slot of Gehäusses is made very narrow, and to manually run switched the last centimeter sucked. Can suction problems About a etxra vent button on the housing by air eliminate startup. Ideal device so for pool owners, like me.
The pumping power surpasses that of my theoretical performance identical ALKO clear, but may be due to their age, including no longer completely sealed housing. Nothing to complain about.

Now to the negatives
Bother me 2 things:
1. Why does the connection with only one inch necessarily annoying enough, less than to be the case of all other submersible pumps usual connection diameter? So I was allowed to first time get a reduction and between screws, so that my tube fitted.
2. A non-return valve is not in. Had I not from my old pump, so would in my pool always reinlulleren again as soon as I turn off the last 1.5 meters of water column. Why is not this item at penny ??

For the nonsense together deliver a point.

Otherwise class device and the problem solver for virtually without residue suction (ideal for draining an emergency in apartments!). Settlement here through Amazon very quickly, transparently and without censure.