its a very new company and doesnt have much reputation, i have heard really good things about it from the people who have it, but i dont know anyone here who has had or used the orca skimmers, sorry
you have to ensure the pipe isnt crimped that goes through the filter sponge and you may even have to get your hand into pump to make sure it isnt blocked,
Be careful of your eyes cause the UV filter is in there too!
The skimmer is relatively good, I do have a few issues now and again, just some sand got into bottom of pump chamber and I cant get it out (i could but havent) and now and again It blocks pump to skimmer!
There is an issue with micro bubbles and low flow but I have added a rena powerhead to spray bar and added sponge to stop micro bubbles