Never seen a splash shield
Never seen the dreaded "Poop Pyramid" either But have read about it and have helped some folks get rid of one (I just never saw it)
IF you can see STRAIGHT down into the tank..
Valterra Master Blaster is a rinse wand with serious attitude issues (I mean it is serious about blasting the .. er.. ****)
Now I made my own I do not like the "Genuine article" cause the spray jet looks like it would be easy to break off so I made my own..
Actually I made my own before I ever saw the "Genuine item"
1/2 inch pvc. Cap Hose fitting vacuum breaker and valve.
Hose to valve to breaker to enough pipe to reach the bottom of the tank and still be 1 foot above the seat
Cap the lower end then drill a hole just about 1/4 inch (or a bit smaller even) in line with either the blue line or the text line (This is to help you aim) in the SIDE of the cap.. That's the whole job
Put city pressure to the top via the valve and breaker OPen valve after it's in the tank and blast the poop-ces to pieces as Sylvester might say.
You can direct the stream. and raise and lower to chew it up well
This you do while hooked to sewer and with valve open of course
Then when well blasted.. Close valve and run oh say 10-15 gallons into the tank (Just stand on the flush pedal for that many mintues or use the factory flusher) then dump 2 or 3 times
Have a 5" clear piece at the rig end of the dump hose so you can watch the chunks blow
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times