At the Chateau du Puits Es Pratx, Tim and Sasha attempt to transform a murky pond into a gleaming water feature to rehouse their 80 goldfish. Near Poitiers, Alison and Zion put their creativity to the test by adding a Moroccan twist to their new bridal suite. And Becky and Mark are in a tight squeeze as they battle to fit an enormous bespoke spiral staircase centrepiece into their gîte