JohnQFWB Report post Posted January 16, 2014 Due to a medical condition, I require a "Higher Throne." My Safari has a Sealand 500 series toilet. Thetford makes a toilet riser that elevates the throne 2 1/2 inches which is perfect. However, the weight capacity of the riser is 350 pounds, and I am sorry to say, a little under that 350 limit. I known the riser is made out of plastic and hollow but what I am wondering is; can I drill a hole in it and fill with some type of hardener?? Share this post Link to post Share on other sites
desertdeals69 Report post Posted January 16, 2014 Why don't you raise the toilet by putting a 2 1/2 inch spacer at the base, unscrew the flange from the holding tank and insert a 3 inch pvc pipe extender. Thats what I did with mine. Share this post Link to post Share on other sites
wayne77590 Report post Posted January 19, 2014 I had the riser, but at the same time I ordered a higher "throne." Installed both and after first use with DW's feet dangling she said "Remove it, please." The 17 inch throne was high enough. I don't see any reason why you could not add a hardener. Give Thetford a call, they may even have something already developed. Share this post Link to post Share on other sites
