help me set up my RO/DI PLEASEE

beginnerreefer2003

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hey guys! First time poster and a brand new reefer here

I’ve just received almost all of my set up in the post today and have spent most of the day fighting with my new RO/DI unit that very conveniently did not come with any instructions and I haven’t been able to find any videos on this model on youtube or anywhere. I’ve ran into an issue with closing the cap of the RO membrane chamber and i’m sure there is a very logical way to do this and i’m not seeing it but I just want to air on the side of caution as to not break anything. The system is an AMS (Aquatic Management Solutions) 4 stage 100GPD RO/DI unit if that helps anyone and attached is a video of me explaining and showing my problem. Also it was wet inside two of the chambers??? Don’t know why but the filters and everything in it are new so ig it’s no problem? Thank you in advance for any help, i’ll definitely be using this forum a lot in the next few months I can imagine 😊



btw before anyone says it, I can’t take off any of the hoses to close it TRUST me i’ve tried pulling them hard but they won’t budge and I don’t want to break anything but SURELY there is a way to do this that i’m just not seeing
 
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also sorry guys I feel like a bit of an idiot but because there are no instructions I don’t know how to use the inline fitting it came with or if I have to remove those red cap bits over each of the in/out puts

I greatly appreciate any and all advice regarding this unit!
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