Does anyone have any comments/praises/complaints on their Rehau underground lines? Can get dual 1 1/4" oxygen barrier insulated underground (just like Thermopex) for $13 a foot, or 1" Thermopex for $11 a foot. Run is approx 100 underground and 50' combined in house. so that would be 250' roundtrip of pex. Could probably use the 1" with no problems, but for an extra $300-$500 why take the chance. Driving over to get next week. Opinions/testimonials please!