on't know about the red seal, texas, but yeah, the black o-ring is what i was thinking about.

elsie, there is no reason that the big black o-ring should have to be replaced seasonally..it won't hurt, but i would rather invest in a can of silicone lube spray for 4 bucks then buy a new seal for 15 to 20 every year. you also then have it to lube as you see fit throughout the season..one spray can will last for years. the added benefit i've had with it is if you are opening up connectors with the small black o-rings during close up for the season as i need to do, i have the spray handing to silicon lube those as well. it works great.