All,

This post may appear twice, I apologize if this happens.

About 3 years ago, I had a paver (sand foundation) patio put in.

It's about 75' long, by 9' deep.

Problem is that the leading edge ends on a slope, leaving the entire row of
pavers at ground level.

The sand is washing from under the last row; and stepping on them causes
them to collapse to the angle of the slope.

The installers had put in plastic strips along the leght of the leading
edge, secured with 7" spikes.

That solution is failing, and I've a feeling the problem is going to work
its way backwards all the way to the edge of my house.

(Althought the patio is 100% level).

Any ideas as to how I might secure the final row of pavers?

Thanks
Matt