Which is the best black tank power wash cleaner

[US RV As-is]

I have been bouncing back and forth for years on this. I am currently using the Valterra master blaster to clean my black tank and it seems to be holding it's weight and gold as for pressure and handling. Recently, we sold our '93 Fleetwood bounder and purchased a 2018 Wini 30' intent. We noticed our easy access window that we used to bring in the hose is longer available to us with the new RV and would need to re-route the hose through a further away window to use the wand. So, I was thinking of installing the Camco tornado into the black tank and hooking the garden hose to it outside and clean it. But the reviews are mixed and the part seems to break or not spin. So then I saw an attachment kit for the Valterra wand that I can use my bathroom sink in the RV as a water source without hauling the hose around windows. I also saw the Tornado should be installed opposite side of the drain which would be impossible for me to install it. I am leaning towards staying with the Valterra master blaster and buying the attachment for the bathroom faucet. not sure if that would be enough pressure. Anybody using the bathroom sink adapter or maybe recommend something else before drilling a hole into my black tank. Thanks in advance.