Just an update to my Topargee water meter.  We used it for the first time on a 4 day camp.
I tested it during three sanitization cycles before we left.  Parked on my slanted driveway, I was able to fill and drain about 110L (29g) of water as measured by the meter.  I did this twice and got consistent drain measurements each time. Then, I tilted the trailer and managed to get in 122L (32g) of water as measured by the meter being set to the known 110L and draining it into the negative (-12L) as measured by the meter.  
On a related note, I believe some people have questioned how much water the Summit can actually hold. Once tilted in the optimal way (nose high and leaning towards the passenger side, I estimate I was able to fit about 135L (35.5g) of water in.  This is just a guess.  I first filled it while on my driveway and assumed there was 122L in the tank. Then , I moved the trailer to flat ground, jacked the nose up and tilted it to the passenger side. My guess is that I got 10-15L more water in. Like a bonehead, I forgot to measure all the water when I drained it before leaving camp. Next time I'll confirm the total capacity.
So far, I am happy with the Topargee water meter.  It's so nice to know how much water you have remaining.
	
	
		
			
				
			
			
				
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