Repairing a 6-way valve and pump cover

I bought my parts from the following websites: H2O Piscines & Spa: Boisseau de vanne PRAHER 1"1/2 avec joint étoile moulé (après 2009) Sauna's & Zwembaden: No. 3 - O-ring (pompdeksel - Koral Starline SL)