Which one did you add? I ditched the black factory one mine came with after I noticed water bubbling from it. Ordered one of these and so far so good.

https://www.amazon.com/Creation-Core-Pressure-Water-Oil-Compressor/dp/B07M8KTS9B/ref=mp_s_a_1_7?crid=4FMCMT3HY6RH&keywords=oil+water+separator+for+pcp&qid=1666538184&sprefix=oil+water+separator+for+pcp%2Caps%2C141&sr=8-7

I've used this compressor with no problems over 50+ fills. Would highly recommend.

https://www.amazon.com/GX-Compressor-Auto-Stop-Water-Oil-Separator/dp/B0819ZH85H/ref=mp_s_a_1_3?dchild=1&keywords=pcp+compressor&qid=1608238446&sr=8-3

Don't forget to buy a moisture filter.

https://www.amazon.com/Creation-Core-Pressure-Water-Oil-Compressor/dp/B07M8KTS9B/ref=pd_aw_fbt_img_2/143-8024144-3355300?_encoding=UTF8&pd_rd_i=B07M8KTS9B&pd_rd_r=cd656c3d-fc60-4475-9a82-ec7f65c393c9&pd_rd_w=72vkk&pd_rd_wg=SFyPg&pf_rd_p=8ad921d8-8b3b-4c8e-be01-c425a146feba&pf_rd_r=X1GGQBZGJ1E57Y0A6FJF&psc=1&refRID=X1GGQBZGJ1E57Y0A6FJF