## Specialist(s) ![patrick-boylan](https://lowimpactorg.onyx-sites.io/wp-content/uploads/patrick-boylan.jpg) Patrick Boylan has had a long-term interest in the environment. A graduate of the Trinity College Dublin Botany Department in 1998, he founded [Toilet Revolution](http://www.toiletrevolution.com) in 2012. Patrick has researched manufacturers the world over, and Toilet Revolution have hundreds of composting toilet installations around the UK and Ireland. ![](https://lowimpactorg.onyx-sites.io/wp-content/uploads/cordelia100.jpg) Cordelia Rowlatt of [Vallis Veg](http://vallisveg.co.uk) lives off-grid on a small piece of land. She has built and used many compost toilets for different situations, as well as lived toilet free when travelling with a gypsy circus - lesson learned: never take your toilet for granted! She also uses processed urine and faeces to feed crops safely. She's our [online course](http://lowimpactorg.onyx-sites.io/compost-toilets-course/) tutor