What is the length of the impeller in an Intex PureSpa Bubble massage pump, Model # 403M?

Question edited for clarity, name of maker.
Question moved from washing machines.

For water rushing out, try and block from the other side so water doesn't reach the part you are undoing. Here is a parts diagram and all the washers and O-rings. Your local pool supplier probably carries them.

https://www.pools.shop/en/intex-spare-parts/whirlpool-pure-spa-bubble-small-1

More here

https://www.google.com/search?q=Intex+Purespa+SB-H20+parts

..

https://www.google.com/search?q=intex+purespa+impeller&sxsrf=AOaemvJ7l9-8AVGl07owxmONpRSihGlfAw:1633987545673&source=univ&tbm=shop&tbo=u&sa=X&ved=2ahUKEwi3n-j5pcPzAhXP

anything is possible new doesnt mean free from defects --and if brand new notify manufacture before touching as to not void warranty and their pump is a known problem its a magnetic plastic with an under sized ceramic shaft that breaks can do online search about them

test gfi plug ---if its a spa most likely pump ceramic shaft broke How to repair Intex PureSpa pump E90 Error 90

pump error --will need to take pump apart and replace the ceramic rod that holds pump in place --intex doesnt sell parts for pumps go to home depot and get a brazing rod $ 10 for a bundle will only need about 3'' clean off flux and replace unit --reason for brass is its a magnetic pump the links show how and where to remove pump but not completely repair [ using the brass rod ]
Intex spa E95 cheap fix Intex SSP 10 PureSpa Repair less than 40

looks like 13 amps is the draw 77In 20in Purespa Bubble Massage Spa Intex

A short term fix for this is to replace the small porcelain rod in the impeller with a 1/8"x 2 7/8" brass rod. I had some laying around from a project for my boat. I usually get it from Lowes in the hardware section. It's in the hobby drawer. It has to be these exact dimensions or it will not fit and will tear itself apart fast. There is a very detailed video on Youtube. "How to repair Intex PureSpa pump (Error 90) by Youtube user John Cornwell. Thank you, John!
I have looked at other more durable options like possibly using a high nickel alloy such as 4140 stainless. the less ferrous, the better.

Is it plugged in "All" the way?

Possibly whatever "Retaining" lock grooves that kept it in originally, was smoothed out with the removal of it? Maybe a new piece will correct this?

Maybe contact Intex:
1-800-234-6839
OR VISIT WEBSITE: WWW.INTEXSTORE.COM.

Owners Manual attached

http://www.pool-j.com/pdf/574616.pdf

Intex PureSpa Owners Manual.pdf