Main Drain Cover Problem

MiaOKCOctober 22, 2012

Hi! Noticed that our Polaris 9300 robot might have gotten into a fight with our main drain cover. It's leaf season so we've been running the robot quite a bit. Our plan was to keep the pool open all winter so we don't have a swamp to look at from all our windows. Had a freeze-guard timer installed.

Googling and searching GW and TFP, I'm guessing the only way to fix the cover is either drain the pool or scuba gear or wait until next year? I cannot tell exactly what is wrong with the cover, it appears there is rust around the screw holes but I cannot be sure if the screws broke or if the robot just dislodged the cover. I presume fixing will entail installation of a VGB compliant cover if this one can't be screwed down again?

Thanks for any insight you all can provide.

Thank you for reporting this comment. Undo

Another pic, not much different.

    Bookmark   October 22, 2012 at 11:17AM
Thank you for reporting this comment. Undo

I would change the drain cover for a newer, VGB compliant one. They tend to be a larger diameter which also slows the water velocity and makes them safer as well.

Paramount makes a universal model that fits just about every drain out there.


    Bookmark   October 23, 2012 at 11:00AM
Thank you for reporting this comment. Undo

Thanks, Scott. Over the summer we felt on the drain with our hands and couldn't feel any suction at all, so I'm thinking we will wait until next summer (and warmer water) to replace - it doesn't appear to be pulling any leaves in or anything. We have a two-skimmer system and finally figured out we had to put a "biscuit"/"saucer" thing in one of the skimmers to get ANY suction from the second one, so I figure the main drain might only operate if we block both skimmers.

Perhaps sometime in the past there were valves on the plumbing to divert between skimmers and drains, but the exposed PVC plumbing had all been recently replaced before we bought the house last year so I cannot tell for sure - there are no valves for that now, just our sand filter's multiport valve. There is also the mystery of the dead return - out of 9 returns, 8 work well and we have balanced them with different sized fittings. One has absolutely nothing going on. Could have been a pressure vac return I supposed - the secrets of the "mature" pool!

    Bookmark   October 23, 2012 at 12:48PM
Thank you for reporting this comment. Undo

I don't think it's the suction holding your cleaner but rather that it stands too high and that the concrete around it is a bit on the steep side.

I'll bet a couple drops of food coloring near the drain will show it to be working. Hands usually are not sensitive enough.

Without seeing the plumbing, I can't guess the configuration. I will say it would be unusual for the drain to be tied to a skimmer since the skimmers are already tied to each other.


    Bookmark   October 24, 2012 at 3:59AM
Sign Up to comment
More Discussions
Owner Builder Process - Full Backyard - San Diego
After years of research, we finally pulled the trigger...
David Peace
How to film pool build timelapse?
I've been lurking for months & finally ready to...
Wendy Baldwin
Please evaluate my quote for new pool build
I recently received the following quote for a vinyl...
Transition between two DiamondBrite colors
Trying to figure out best way to do this. Will be doing...
New Pool Build in Cypress near Houston
This is my first post. I'm so excited to get started...
Sponsored Products
Traditions Sage and Ivory Runner: 2 Ft. x 12 Ft. Rug
$253.95 | Bellacor
Serena Ottoman Riviera
Seashell Bath Clock
$79.00 | Bellacor
Traditional Thermostatic Shower System, 12 Ceiling Head & Handshower
Hudson Reed
Mitchell Leather Sofa - Brighton Ciment Gray
Joybird Furniture
Virtu USA MS-560-S-ES 29 Marsala Single Sink Bathroom Vanity in Espresso
$819.00 | Blue Bath
Domusworks Coco Blue Decorative Pillow - DM44
$71.99 | Hayneedle
Square Thermostatic Shower System with 12 Ceiling Head & Handshower
Hudson Reed
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™