Hello landlord to 2,
Thank you for your question regarding the Delta Riosa® Select Elongated Concealed Trapway Toilet.
I am very sorry to hear that your toilet is clogged and for any inconvenience this has caused and I will be happy to assist you today.
Since you have already attempted to plunge the toilet, we recommend snaking the toilet first to see if you can loosen up whatever may be clogging the lines.
If the toilet still will not drain and re-fill properly, you may need to check the venting on your home to ensure there aren't any clogs present in your vents preventing a proper flush, allowing for the pipes to drain.
I hope this information helps and if we can assist you further with this issue over the phone, please do not hesitate to give us a call at 855-345-1345 and we will do our best to assist you where we can.
Delta Faucet Company
Date published: 2018-02-05