Is a small gap between CPU waterblock and rigid fittings normal?

[animemangamer]

I shifted from flex tubing (Xspc compression fittings) to rigid tubing (Monsoon EV2 fittings)

I changed my Intel CPU waterblock: XSPC Raystorm Pro(old) to Raystorm Neo (new)

I noticed the gap of the rigid fittings from the cpu waterblock and I tried to screw it down with the tool as much as my fingers start to hurt but there's still a gap.

I uploaded another here shows the Monsoon EV2 rigid fittings (left) Xspc flex tubing compression fittings (right) on my old cpu waterblock which is copper.

The flex xspc fittings screw down all the way while the rigid ev2 does not.

Is this normal to have a gap or not?
Should I continue to force it down? I'm afraid of cracking the cpu waterblock though. Since it looks like it's made of acrylic.

 

[Blas]

As far as i remember, one of the fitting's o-rings is on its base, so it has to go all the way down to avoid leaks. Maybe the threading is not compatible? I would ask on XSPC's support page about compatibility. You can also just put a piece of tubing into that fitting, screw the fitting to the block as you show (so not all the way down) but out of the PC, pour in some water, and check whether it leaks or not.

 

[1LiquidPC]

Not normal. With that gap, the O-ring won't seal the connection. Most likely, some water will leak around the threads. Are the new fittings G 1/4? If not, you may be crossthreading the fitting.