Why does New Upper Rad Hose seep like the old one?

The original upper rad hose did this & now the new one.
Clamp and hose was changed by dealer.
It leaves dried up red crystals from the coolant & I have to add every so often to the resevoir.
I am just about out of the $25 gallon of Toyota Antifreeze.
It seems the truck has done this since around 15k & now has 58k.
Does others notice this on their trucks?

There is also crystals on the fill resi hose too & have seen pics of others having it there. No leaks on ground though.
I guess back to the dealer? Does this hurt anything?

 

Get a new cap, that's what's leaking I bet

 

Thanks! I will pick one up tomorrow.

 

New cap is a good idea, also consider small cable ties around the 1/2 inch hoses into /out of the antifreeze reservoir.

 

New cap and clamps put on lets see if this seeps again!
Appreciate the ideas and thank you!