Just did my 50 hour service i really like sany my 35u has tons of power for its size they use all the same components as the name brand machines i got mine brand new for 46k with tax exemption 5 year 5000 hr warrenty
Yes I went to my local hydraulic hose shop and they had 3/4” check valve and the fittings and had them cut the original hoses and add ends to connect to the H valve it was about $260 for everything definitely necessary