Keeping a tension shower rod in place is challenging. They're either creeping down the tile or crashing into the tub. If you're using a tension rod, it's probably because you have to...you're renting or just don't want to put holes in your tile. I did some digging for solutions and uncovered these options...some may even work!
1) Create More Friction
From homeguides.sfgate.com:
The caps on tension rods are often made of plastic, but even rubber ones are so incompressible that moist, smooth surfaces such as tile or fiberglass can't hold them. You can fix that by gluing rubber shelf lining material to the ends with strong glue - two-part epoxy or contact cement. The lining material won't damage the wall and is easy to trim to the contours of the caps with scissors. Tightening the tension rod enough to compress the liner should make the rod secure enough to hold even a heavy shower curtain...Hmm, wonder if it would bunch up if it moves?
2) Secure The Ends
From homeguides.sfgate.com:
If the walls on either side of the shower are drywall, you may not be able to tighten the tension rod enough without cracking the walls. Closet pole holders will keep the rod from falling. Each one needs only a single screw sunk into a plastic wall anchor. If you don't like the store-bought pole holders, make your own from any kind of wood. Any shape will do, as long as you drill recesses wide enough for the rod. Paint them the wall color to hide them, or spruce them up with another color and make them a feature...Not very subtle but would work if it's going into drywall.3) Secure The Middle
From Katie at thriftyfun.com:Take it down and screw it out until it is longer than the space between the two walls. Then you'll have to really PRESS it back up but it should hold. If the problem is that your rod screws itself back in and gets too small that way...I'd say if some duct tape on it doesn't keep in from screwing itself in, pitch it and get a new one...Talk about not being subtle - duct tape?
4) No-Drill Adapter + Rotating Curved Shower Rod
From Rotator Rod: Solve your tension rod problem and get the latest in bathroom decor!The No-Drill Adapter secures the Rotator Rod Curved Shower Rod to hard surfaces like tile, stone and fiberglass without damaging holes. It's patented adhesive, originally made for the aviation industry, was created to endure tempurature extremes and humidity. The best part is that if need be, it can be removed with a wrench, some nail polish remover and a bit of elbow grease, so apartments LOVE them! Here's the best part - they were made especially for the Rotator Rod - the curved shower rod with 2 positions to maximize bathroom space! Check it out!
The easiest fix for this takes less than 30 seconds. Does not require any tools and will not damage your shower walls. Simply remove the backing on the double sided tape and “Stick To Stay”. Insert the ends of your compression shower rod, tighten, and your problem is solved . Clear acrylic cups will hold up to 50 pounds per side and cost under $20 on Ebay and Amazon.
Great idea. My bathe curtain doesn’t collapse, but it does perform a little creep each day till the curtain is joining me in the bath!
Your boys are getting so huge.