Not at the wash nw. Will check. I think we put Hose clamps on both fittings that surround the hoses. Makes them stay more securely. Never occurred to me not to use the hose clamps.
Earl,
If I recall, you have JC combo vacs. How does the dualer mount on those? The hose nipple on my vacs is very close to the coin box and it doesn't seem like the dualer would fit.